Home / 112,424.77-155,148.41-61,440.66

Finding the Fourth Proportional to 112,424.77, 155,148.41 and 61,440.66

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Solution

The fourth proportional to 112,424.77, 155,148.41 and 61,440.66 is: 84,789.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,424.77 : 155,148.41 = 61,440.66 : x
  2. Step 2: Convert to fraction form
    112,424.77/155,148.41 = 61,440.66/x
  3. Step 3: Cross multiply
    112,424.77x = 155,148.41 × 61,440.66
  4. Step 4: Simplify right side
    112,424.77x = 9,532,420,166.88
  5. Step 5: Solve for x
    x = 9,532,420,166.88/112,424.77
  6. Step 6: Final answer
    x = 84,789.32

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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.