Home / 121,228.55-181,926.05-42,342.85

Finding the Fourth Proportional to 121,228.55, 181,926.05 and 42,342.85

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Solution

The fourth proportional to 121,228.55, 181,926.05 and 42,342.85 is: 63,543.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,228.55 : 181,926.05 = 42,342.85 : x
  2. Step 2: Convert to fraction form
    121,228.55/181,926.05 = 42,342.85/x
  3. Step 3: Cross multiply
    121,228.55x = 181,926.05 × 42,342.85
  4. Step 4: Simplify right side
    121,228.55x = 7,703,267,700.11
  5. Step 5: Solve for x
    x = 7,703,267,700.11/121,228.55
  6. Step 6: Final answer
    x = 63,543.35

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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.