Home / 125,091.76-187,657.06-42,005.20

Finding the Fourth Proportional to 125,091.76, 187,657.06 and 42,005.20

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Solution

The fourth proportional to 125,091.76, 187,657.06 and 42,005.20 is: 63,014.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,091.76 : 187,657.06 = 42,005.20 : x
  2. Step 2: Convert to fraction form
    125,091.76/187,657.06 = 42,005.20/x
  3. Step 3: Cross multiply
    125,091.76x = 187,657.06 × 42,005.20
  4. Step 4: Simplify right side
    125,091.76x = 7,882,572,336.71
  5. Step 5: Solve for x
    x = 7,882,572,336.71/125,091.76
  6. Step 6: Final answer
    x = 63,014.32

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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.