Home / 127,519.10-176,010.15-89,810.30

Finding the Fourth Proportional to 127,519.10, 176,010.15 and 89,810.30

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Solution

The fourth proportional to 127,519.10, 176,010.15 and 89,810.30 is: 123,962.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,519.10 : 176,010.15 = 89,810.30 : x
  2. Step 2: Convert to fraction form
    127,519.10/176,010.15 = 89,810.30/x
  3. Step 3: Cross multiply
    127,519.10x = 176,010.15 × 89,810.30
  4. Step 4: Simplify right side
    127,519.10x = 15,807,524,374.55
  5. Step 5: Solve for x
    x = 15,807,524,374.55/127,519.10
  6. Step 6: Final answer
    x = 123,962.01

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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.