Home / 191,780.06-287,670-58,660.34

Finding the Fourth Proportional to 191,780.06, 287,670 and 58,660.34

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Solution

The fourth proportional to 191,780.06, 287,670 and 58,660.34 is: 87,990.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,780.06 : 287,670 = 58,660.34 : x
  2. Step 2: Convert to fraction form
    191,780.06/287,670 = 58,660.34/x
  3. Step 3: Cross multiply
    191,780.06x = 287,670 × 58,660.34
  4. Step 4: Simplify right side
    191,780.06x = 16,874,820,007.80
  5. Step 5: Solve for x
    x = 16,874,820,007.80/191,780.06
  6. Step 6: Final answer
    x = 87,990.48

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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.