Home / 113,729.16-156,946.56-63,431.40

Finding the Fourth Proportional to 113,729.16, 156,946.56 and 63,431.40

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Solution

The fourth proportional to 113,729.16, 156,946.56 and 63,431.40 is: 87,535.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,729.16 : 156,946.56 = 63,431.40 : x
  2. Step 2: Convert to fraction form
    113,729.16/156,946.56 = 63,431.40/x
  3. Step 3: Cross multiply
    113,729.16x = 156,946.56 × 63,431.40
  4. Step 4: Simplify right side
    113,729.16x = 9,955,340,025.98
  5. Step 5: Solve for x
    x = 9,955,340,025.98/113,729.16
  6. Step 6: Final answer
    x = 87,535.51

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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.