Home / 112,359.20-155,117.98-76,601.74

Finding the Fourth Proportional to 112,359.20, 155,117.98 and 76,601.74

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Solution

The fourth proportional to 112,359.20, 155,117.98 and 76,601.74 is: 105,752.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,359.20 : 155,117.98 = 76,601.74 : x
  2. Step 2: Convert to fraction form
    112,359.20/155,117.98 = 76,601.74/x
  3. Step 3: Cross multiply
    112,359.20x = 155,117.98 × 76,601.74
  4. Step 4: Simplify right side
    112,359.20x = 11,882,307,173.29
  5. Step 5: Solve for x
    x = 11,882,307,173.29/112,359.20
  6. Step 6: Final answer
    x = 105,752.86

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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.