Home / 137,569.01-189,764.80-86,500.89

Finding the Fourth Proportional to 137,569.01, 189,764.80 and 86,500.89

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Solution

The fourth proportional to 137,569.01, 189,764.80 and 86,500.89 is: 119,320.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,569.01 : 189,764.80 = 86,500.89 : x
  2. Step 2: Convert to fraction form
    137,569.01/189,764.80 = 86,500.89/x
  3. Step 3: Cross multiply
    137,569.01x = 189,764.80 × 86,500.89
  4. Step 4: Simplify right side
    137,569.01x = 16,414,824,090.67
  5. Step 5: Solve for x
    x = 16,414,824,090.67/137,569.01
  6. Step 6: Final answer
    x = 119,320.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.