Home / 121,385.04-182,103.54-42,501.84

Finding the Fourth Proportional to 121,385.04, 182,103.54 and 42,501.84

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Solution

The fourth proportional to 121,385.04, 182,103.54 and 42,501.84 is: 63,761.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,385.04 : 182,103.54 = 42,501.84 : x
  2. Step 2: Convert to fraction form
    121,385.04/182,103.54 = 42,501.84/x
  3. Step 3: Cross multiply
    121,385.04x = 182,103.54 × 42,501.84
  4. Step 4: Simplify right side
    121,385.04x = 7,739,735,520.51
  5. Step 5: Solve for x
    x = 7,739,735,520.51/121,385.04
  6. Step 6: Final answer
    x = 63,761.86

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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.