Home / 127,820.13-176,399.49-70,459.38

Finding the Fourth Proportional to 127,820.13, 176,399.49 and 70,459.38

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Solution

The fourth proportional to 127,820.13, 176,399.49 and 70,459.38 is: 97,238.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,820.13 : 176,399.49 = 70,459.38 : x
  2. Step 2: Convert to fraction form
    127,820.13/176,399.49 = 70,459.38/x
  3. Step 3: Cross multiply
    127,820.13x = 176,399.49 × 70,459.38
  4. Step 4: Simplify right side
    127,820.13x = 12,428,998,697.72
  5. Step 5: Solve for x
    x = 12,428,998,697.72/127,820.13
  6. Step 6: Final answer
    x = 97,238.19

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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.