Home / 105,768,165.60-158,652,248.40-90,651,621.60

Finding the Fourth Proportional to 105,768,165.60, 158,652,248.40 and 90,651,621.60

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Solution

The fourth proportional to 105,768,165.60, 158,652,248.40 and 90,651,621.60 is: 135,977,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,768,165.60 : 158,652,248.40 = 90,651,621.60 : x
  2. Step 2: Convert to fraction form
    105,768,165.60/158,652,248.40 = 90,651,621.60/x
  3. Step 3: Cross multiply
    105,768,165.60x = 158,652,248.40 × 90,651,621.60
  4. Step 4: Simplify right side
    105,768,165.60x = 14,382,083,587,946,006
  5. Step 5: Solve for x
    x = 14,382,083,587,946,006/105,768,165.60
  6. Step 6: Final answer
    x = 135,977,432.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.