Home / 121,814.61-182,703.40-42,910.38

Finding the Fourth Proportional to 121,814.61, 182,703.40 and 42,910.38

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Solution

The fourth proportional to 121,814.61, 182,703.40 and 42,910.38 is: 64,359.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,814.61 : 182,703.40 = 42,910.38 : x
  2. Step 2: Convert to fraction form
    121,814.61/182,703.40 = 42,910.38/x
  3. Step 3: Cross multiply
    121,814.61x = 182,703.40 × 42,910.38
  4. Step 4: Simplify right side
    121,814.61x = 7,839,872,321.29
  5. Step 5: Solve for x
    x = 7,839,872,321.29/121,814.61
  6. Step 6: Final answer
    x = 64,359.05

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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.