Home / 112,921.24-155,831.28-62,620.24

Finding the Fourth Proportional to 112,921.24, 155,831.28 and 62,620.24

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Solution

The fourth proportional to 112,921.24, 155,831.28 and 62,620.24 is: 86,415.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,921.24 : 155,831.28 = 62,620.24 : x
  2. Step 2: Convert to fraction form
    112,921.24/155,831.28 = 62,620.24/x
  3. Step 3: Cross multiply
    112,921.24x = 155,831.28 × 62,620.24
  4. Step 4: Simplify right side
    112,921.24x = 9,758,192,153.11
  5. Step 5: Solve for x
    x = 9,758,192,153.11/112,921.24
  6. Step 6: Final answer
    x = 86,415.91

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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.