Home / 112,854.04-155,737.56-61,869.68

Finding the Fourth Proportional to 112,854.04, 155,737.56 and 61,869.68

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Solution

The fourth proportional to 112,854.04, 155,737.56 and 61,869.68 is: 85,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,854.04 : 155,737.56 = 61,869.68 : x
  2. Step 2: Convert to fraction form
    112,854.04/155,737.56 = 61,869.68/x
  3. Step 3: Cross multiply
    112,854.04x = 155,737.56 × 61,869.68
  4. Step 4: Simplify right side
    112,854.04x = 9,635,433,001.18
  5. Step 5: Solve for x
    x = 9,635,433,001.18/112,854.04
  6. Step 6: Final answer
    x = 85,379.60

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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.