Home / 112,831.28-155,700.83-61,834.29

Finding the Fourth Proportional to 112,831.28, 155,700.83 and 61,834.29

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Solution

The fourth proportional to 112,831.28, 155,700.83 and 61,834.29 is: 85,327.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,831.28 : 155,700.83 = 61,834.29 : x
  2. Step 2: Convert to fraction form
    112,831.28/155,700.83 = 61,834.29/x
  3. Step 3: Cross multiply
    112,831.28x = 155,700.83 × 61,834.29
  4. Step 4: Simplify right side
    112,831.28x = 9,627,649,846.17
  5. Step 5: Solve for x
    x = 9,627,649,846.17/112,831.28
  6. Step 6: Final answer
    x = 85,327.84

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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.