Home / 137,029.08-189,089.61-83,306.64

Finding the Fourth Proportional to 137,029.08, 189,089.61 and 83,306.64

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Solution

The fourth proportional to 137,029.08, 189,089.61 and 83,306.64 is: 114,956.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,029.08 : 189,089.61 = 83,306.64 : x
  2. Step 2: Convert to fraction form
    137,029.08/189,089.61 = 83,306.64/x
  3. Step 3: Cross multiply
    137,029.08x = 189,089.61 × 83,306.64
  4. Step 4: Simplify right side
    137,029.08x = 15,752,420,068.01
  5. Step 5: Solve for x
    x = 15,752,420,068.01/137,029.08
  6. Step 6: Final answer
    x = 114,956.77

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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.