Home / 113,748.16-156,972.78-63,450.40

Finding the Fourth Proportional to 113,748.16, 156,972.78 and 63,450.40

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Solution

The fourth proportional to 113,748.16, 156,972.78 and 63,450.40 is: 87,561.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,748.16 : 156,972.78 = 63,450.40 : x
  2. Step 2: Convert to fraction form
    113,748.16/156,972.78 = 63,450.40/x
  3. Step 3: Cross multiply
    113,748.16x = 156,972.78 × 63,450.40
  4. Step 4: Simplify right side
    113,748.16x = 9,959,985,680.11
  5. Step 5: Solve for x
    x = 9,959,985,680.11/113,748.16
  6. Step 6: Final answer
    x = 87,561.73

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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.