Home / 127,839.30-176,419.10-71,254.32

Finding the Fourth Proportional to 127,839.30, 176,419.10 and 71,254.32

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Solution

The fourth proportional to 127,839.30, 176,419.10 and 71,254.32 is: 98,331.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,839.30 : 176,419.10 = 71,254.32 : x
  2. Step 2: Convert to fraction form
    127,839.30/176,419.10 = 71,254.32/x
  3. Step 3: Cross multiply
    127,839.30x = 176,419.10 × 71,254.32
  4. Step 4: Simplify right side
    127,839.30x = 12,570,623,005.51
  5. Step 5: Solve for x
    x = 12,570,623,005.51/127,839.30
  6. Step 6: Final answer
    x = 98,331.44

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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.