Home / 118,483.56-163,508.40-64,767.60

Finding the Fourth Proportional to 118,483.56, 163,508.40 and 64,767.60

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Solution

The fourth proportional to 118,483.56, 163,508.40 and 64,767.60 is: 89,379.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,483.56 : 163,508.40 = 64,767.60 : x
  2. Step 2: Convert to fraction form
    118,483.56/163,508.40 = 64,767.60/x
  3. Step 3: Cross multiply
    118,483.56x = 163,508.40 × 64,767.60
  4. Step 4: Simplify right side
    118,483.56x = 10,590,046,647.84
  5. Step 5: Solve for x
    x = 10,590,046,647.84/118,483.56
  6. Step 6: Final answer
    x = 89,379.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.