Home / 121,545.47-167,741.23-67,831.38

Finding the Fourth Proportional to 121,545.47, 167,741.23 and 67,831.38

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Solution

The fourth proportional to 121,545.47, 167,741.23 and 67,831.38 is: 93,612.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,545.47 : 167,741.23 = 67,831.38 : x
  2. Step 2: Convert to fraction form
    121,545.47/167,741.23 = 67,831.38/x
  3. Step 3: Cross multiply
    121,545.47x = 167,741.23 × 67,831.38
  4. Step 4: Simplify right side
    121,545.47x = 11,378,119,113.80
  5. Step 5: Solve for x
    x = 11,378,119,113.80/121,545.47
  6. Step 6: Final answer
    x = 93,612.04

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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.