Home / 102,612.56-141,605.64-57,899.60

Finding the Fourth Proportional to 102,612.56, 141,605.64 and 57,899.60

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Solution

The fourth proportional to 102,612.56, 141,605.64 and 57,899.60 is: 79,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,612.56 : 141,605.64 = 57,899.60 : x
  2. Step 2: Convert to fraction form
    102,612.56/141,605.64 = 57,899.60/x
  3. Step 3: Cross multiply
    102,612.56x = 141,605.64 × 57,899.60
  4. Step 4: Simplify right side
    102,612.56x = 8,198,909,913.74
  5. Step 5: Solve for x
    x = 8,198,909,913.74/102,612.56
  6. Step 6: Final answer
    x = 79,901.62

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1.5x scale

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.