Home / 160,831.16-221,943.61-89,210.55

Finding the Fourth Proportional to 160,831.16, 221,943.61 and 89,210.55

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Solution

The fourth proportional to 160,831.16, 221,943.61 and 89,210.55 is: 123,108.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,831.16 : 221,943.61 = 89,210.55 : x
  2. Step 2: Convert to fraction form
    160,831.16/221,943.61 = 89,210.55/x
  3. Step 3: Cross multiply
    160,831.16x = 221,943.61 × 89,210.55
  4. Step 4: Simplify right side
    160,831.16x = 19,799,711,517.09
  5. Step 5: Solve for x
    x = 19,799,711,517.09/160,831.16
  6. Step 6: Final answer
    x = 123,108.68

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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.