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Finding the Fourth Proportional to 98,141.60, 147,212.40 and 56,669.60

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Solution

The fourth proportional to 98,141.60, 147,212.40 and 56,669.60 is: 85,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,141.60 : 147,212.40 = 56,669.60 : x
  2. Step 2: Convert to fraction form
    98,141.60/147,212.40 = 56,669.60/x
  3. Step 3: Cross multiply
    98,141.60x = 147,212.40 × 56,669.60
  4. Step 4: Simplify right side
    98,141.60x = 8,342,467,823.04
  5. Step 5: Solve for x
    x = 8,342,467,823.04/98,141.60
  6. Step 6: Final answer
    x = 85,004.40

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1.5x scale

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.