Home / 121,007.28-181,496.34-42,114.90

Finding the Fourth Proportional to 121,007.28, 181,496.34 and 42,114.90

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Solution

The fourth proportional to 121,007.28, 181,496.34 and 42,114.90 is: 63,167.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,007.28 : 181,496.34 = 42,114.90 : x
  2. Step 2: Convert to fraction form
    121,007.28/181,496.34 = 42,114.90/x
  3. Step 3: Cross multiply
    121,007.28x = 181,496.34 × 42,114.90
  4. Step 4: Simplify right side
    121,007.28x = 7,643,700,209.47
  5. Step 5: Solve for x
    x = 7,643,700,209.47/121,007.28
  6. Step 6: Final answer
    x = 63,167.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.