Home / 187,831.10-259,240.22-142,432.55

Finding the Fourth Proportional to 187,831.10, 259,240.22 and 142,432.55

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Solution

The fourth proportional to 187,831.10, 259,240.22 and 142,432.55 is: 196,582.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,831.10 : 259,240.22 = 142,432.55 : x
  2. Step 2: Convert to fraction form
    187,831.10/259,240.22 = 142,432.55/x
  3. Step 3: Cross multiply
    187,831.10x = 259,240.22 × 142,432.55
  4. Step 4: Simplify right side
    187,831.10x = 36,924,246,224.77
  5. Step 5: Solve for x
    x = 36,924,246,224.77/187,831.10
  6. Step 6: Final answer
    x = 196,582.17

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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.