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Finding the Fourth Proportional to 127,962, 176,587.76 and 71,376.96

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Solution

The fourth proportional to 127,962, 176,587.76 and 71,376.96 is: 98,500.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,962 : 176,587.76 = 71,376.96 : x
  2. Step 2: Convert to fraction form
    127,962/176,587.76 = 71,376.96/x
  3. Step 3: Cross multiply
    127,962x = 176,587.76 × 71,376.96
  4. Step 4: Simplify right side
    127,962x = 12,604,297,482.01
  5. Step 5: Solve for x
    x = 12,604,297,482.01/127,962
  6. Step 6: Final answer
    x = 98,500.32

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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.