Home / 113,740.08-156,964.68-63,438

Finding the Fourth Proportional to 113,740.08, 156,964.68 and 63,438

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Solution

The fourth proportional to 113,740.08, 156,964.68 and 63,438 is: 87,546.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,740.08 : 156,964.68 = 63,438 : x
  2. Step 2: Convert to fraction form
    113,740.08/156,964.68 = 63,438/x
  3. Step 3: Cross multiply
    113,740.08x = 156,964.68 × 63,438
  4. Step 4: Simplify right side
    113,740.08x = 9,957,525,369.84
  5. Step 5: Solve for x
    x = 9,957,525,369.84/113,740.08
  6. Step 6: Final answer
    x = 87,546.32

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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.