Home / 112,324.69-155,008.83-61,337.78

Finding the Fourth Proportional to 112,324.69, 155,008.83 and 61,337.78

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Solution

The fourth proportional to 112,324.69, 155,008.83 and 61,337.78 is: 84,646.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,324.69 : 155,008.83 = 61,337.78 : x
  2. Step 2: Convert to fraction form
    112,324.69/155,008.83 = 61,337.78/x
  3. Step 3: Cross multiply
    112,324.69x = 155,008.83 × 61,337.78
  4. Step 4: Simplify right side
    112,324.69x = 9,507,897,512.60
  5. Step 5: Solve for x
    x = 9,507,897,512.60/112,324.69
  6. Step 6: Final answer
    x = 84,646.55

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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.