Home / 137,646.38-189,966.40-77,233.34

Finding the Fourth Proportional to 137,646.38, 189,966.40 and 77,233.34

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Solution

The fourth proportional to 137,646.38, 189,966.40 and 77,233.34 is: 106,590.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,646.38 : 189,966.40 = 77,233.34 : x
  2. Step 2: Convert to fraction form
    137,646.38/189,966.40 = 77,233.34/x
  3. Step 3: Cross multiply
    137,646.38x = 189,966.40 × 77,233.34
  4. Step 4: Simplify right side
    137,646.38x = 14,671,739,559.78
  5. Step 5: Solve for x
    x = 14,671,739,559.78/137,646.38
  6. Step 6: Final answer
    x = 106,590.09

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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.