Home / 112,919.36-155,902.24-77,096.32

Finding the Fourth Proportional to 112,919.36, 155,902.24 and 77,096.32

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Solution

The fourth proportional to 112,919.36, 155,902.24 and 77,096.32 is: 106,443.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,919.36 : 155,902.24 = 77,096.32 : x
  2. Step 2: Convert to fraction form
    112,919.36/155,902.24 = 77,096.32/x
  3. Step 3: Cross multiply
    112,919.36x = 155,902.24 × 77,096.32
  4. Step 4: Simplify right side
    112,919.36x = 12,019,488,983.76
  5. Step 5: Solve for x
    x = 12,019,488,983.76/112,919.36
  6. Step 6: Final answer
    x = 106,443.12

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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.