Home / 112,424.99-155,148.50-61,439.85

Finding the Fourth Proportional to 112,424.99, 155,148.50 and 61,439.85

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Solution

The fourth proportional to 112,424.99, 155,148.50 and 61,439.85 is: 84,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,424.99 : 155,148.50 = 61,439.85 : x
  2. Step 2: Convert to fraction form
    112,424.99/155,148.50 = 61,439.85/x
  3. Step 3: Cross multiply
    112,424.99x = 155,148.50 × 61,439.85
  4. Step 4: Simplify right side
    112,424.99x = 9,532,300,721.32
  5. Step 5: Solve for x
    x = 9,532,300,721.32/112,424.99
  6. Step 6: Final answer
    x = 84,788.10

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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.