Home / 112,404.18-155,115.93-61,415.79

Finding the Fourth Proportional to 112,404.18, 155,115.93 and 61,415.79

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Solution

The fourth proportional to 112,404.18, 155,115.93 and 61,415.79 is: 84,752.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,404.18 : 155,115.93 = 61,415.79 : x
  2. Step 2: Convert to fraction form
    112,404.18/155,115.93 = 61,415.79/x
  3. Step 3: Cross multiply
    112,404.18x = 155,115.93 × 61,415.79
  4. Step 4: Simplify right side
    112,404.18x = 9,526,567,382.53
  5. Step 5: Solve for x
    x = 9,526,567,382.53/112,404.18
  6. Step 6: Final answer
    x = 84,752.79

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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.