Home / 112,838.20-155,732.67-69,831.55

Finding the Fourth Proportional to 112,838.20, 155,732.67 and 69,831.55

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Solution

The fourth proportional to 112,838.20, 155,732.67 and 69,831.55 is: 96,377.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,838.20 : 155,732.67 = 69,831.55 : x
  2. Step 2: Convert to fraction form
    112,838.20/155,732.67 = 69,831.55/x
  3. Step 3: Cross multiply
    112,838.20x = 155,732.67 × 69,831.55
  4. Step 4: Simplify right side
    112,838.20x = 10,875,053,644.45
  5. Step 5: Solve for x
    x = 10,875,053,644.45/112,838.20
  6. Step 6: Final answer
    x = 96,377.41

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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.