Home / 131,726.55-197,589-42,980.13

Finding the Fourth Proportional to 131,726.55, 197,589 and 42,980.13

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Solution

The fourth proportional to 131,726.55, 197,589 and 42,980.13 is: 64,469.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,726.55 : 197,589 = 42,980.13 : x
  2. Step 2: Convert to fraction form
    131,726.55/197,589 = 42,980.13/x
  3. Step 3: Cross multiply
    131,726.55x = 197,589 × 42,980.13
  4. Step 4: Simplify right side
    131,726.55x = 8,492,400,906.57
  5. Step 5: Solve for x
    x = 8,492,400,906.57/131,726.55
  6. Step 6: Final answer
    x = 64,469.93

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1.5x scale

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.