Home / 112,369.74-155,132.46-76,612.29

Finding the Fourth Proportional to 112,369.74, 155,132.46 and 76,612.29

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Solution

The fourth proportional to 112,369.74, 155,132.46 and 76,612.29 is: 105,767.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,369.74 : 155,132.46 = 76,612.29 : x
  2. Step 2: Convert to fraction form
    112,369.74/155,132.46 = 76,612.29/x
  3. Step 3: Cross multiply
    112,369.74x = 155,132.46 × 76,612.29
  4. Step 4: Simplify right side
    112,369.74x = 11,885,053,013.93
  5. Step 5: Solve for x
    x = 11,885,053,013.93/112,369.74
  6. Step 6: Final answer
    x = 105,767.38

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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.