Home / 103,336.96-142,606.56-99,761.20

Finding the Fourth Proportional to 103,336.96, 142,606.56 and 99,761.20

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Solution

The fourth proportional to 103,336.96, 142,606.56 and 99,761.20 is: 137,671.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,336.96 : 142,606.56 = 99,761.20 : x
  2. Step 2: Convert to fraction form
    103,336.96/142,606.56 = 99,761.20/x
  3. Step 3: Cross multiply
    103,336.96x = 142,606.56 × 99,761.20
  4. Step 4: Simplify right side
    103,336.96x = 14,226,601,553.47
  5. Step 5: Solve for x
    x = 14,226,601,553.47/103,336.96
  6. Step 6: Final answer
    x = 137,671.96

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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.