Home / 131,763.57-181,832.43-71,332.62

Finding the Fourth Proportional to 131,763.57, 181,832.43 and 71,332.62

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Solution

The fourth proportional to 131,763.57, 181,832.43 and 71,332.62 is: 98,438.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,763.57 : 181,832.43 = 71,332.62 : x
  2. Step 2: Convert to fraction form
    131,763.57/181,832.43 = 71,332.62/x
  3. Step 3: Cross multiply
    131,763.57x = 181,832.43 × 71,332.62
  4. Step 4: Simplify right side
    131,763.57x = 12,970,583,632.87
  5. Step 5: Solve for x
    x = 12,970,583,632.87/131,763.57
  6. Step 6: Final answer
    x = 98,438.31

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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.