Home / 134,607.92-185,752.28-78,037.68

Finding the Fourth Proportional to 134,607.92, 185,752.28 and 78,037.68

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Solution

The fourth proportional to 134,607.92, 185,752.28 and 78,037.68 is: 107,688.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,607.92 : 185,752.28 = 78,037.68 : x
  2. Step 2: Convert to fraction form
    134,607.92/185,752.28 = 78,037.68/x
  3. Step 3: Cross multiply
    134,607.92x = 185,752.28 × 78,037.68
  4. Step 4: Simplify right side
    134,607.92x = 14,495,676,985.91
  5. Step 5: Solve for x
    x = 14,495,676,985.91/134,607.92
  6. Step 6: Final answer
    x = 107,688.14

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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.