Home / 136,000.85-187,678.68-75,570.39

Finding the Fourth Proportional to 136,000.85, 187,678.68 and 75,570.39

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Solution

The fourth proportional to 136,000.85, 187,678.68 and 75,570.39 is: 104,285.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,000.85 : 187,678.68 = 75,570.39 : x
  2. Step 2: Convert to fraction form
    136,000.85/187,678.68 = 75,570.39/x
  3. Step 3: Cross multiply
    136,000.85x = 187,678.68 × 75,570.39
  4. Step 4: Simplify right side
    136,000.85x = 14,182,951,042.29
  5. Step 5: Solve for x
    x = 14,182,951,042.29/136,000.85
  6. Step 6: Final answer
    x = 104,285.76

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1.5x scale

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.