Home / 113,787.08-156,937.41-72,955.11

Finding the Fourth Proportional to 113,787.08, 156,937.41 and 72,955.11

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Solution

The fourth proportional to 113,787.08, 156,937.41 and 72,955.11 is: 100,621.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,787.08 : 156,937.41 = 72,955.11 : x
  2. Step 2: Convert to fraction form
    113,787.08/156,937.41 = 72,955.11/x
  3. Step 3: Cross multiply
    113,787.08x = 156,937.41 × 72,955.11
  4. Step 4: Simplify right side
    113,787.08x = 11,449,386,871.76
  5. Step 5: Solve for x
    x = 11,449,386,871.76/113,787.08
  6. Step 6: Final answer
    x = 100,621.15

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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.