Home / 121,119.40-181,614.30-42,236.20

Finding the Fourth Proportional to 121,119.40, 181,614.30 and 42,236.20

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Solution

The fourth proportional to 121,119.40, 181,614.30 and 42,236.20 is: 63,331.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,119.40 : 181,614.30 = 42,236.20 : x
  2. Step 2: Convert to fraction form
    121,119.40/181,614.30 = 42,236.20/x
  3. Step 3: Cross multiply
    121,119.40x = 181,614.30 × 42,236.20
  4. Step 4: Simplify right side
    121,119.40x = 7,670,697,897.66
  5. Step 5: Solve for x
    x = 7,670,697,897.66/121,119.40
  6. Step 6: Final answer
    x = 63,331.70

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1.5x scale

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.