Home / 89,898.12-124,113.06-79,934.76

Finding the Fourth Proportional to 89,898.12, 124,113.06 and 79,934.76

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Solution

The fourth proportional to 89,898.12, 124,113.06 and 79,934.76 is: 110,357.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,898.12 : 124,113.06 = 79,934.76 : x
  2. Step 2: Convert to fraction form
    89,898.12/124,113.06 = 79,934.76/x
  3. Step 3: Cross multiply
    89,898.12x = 124,113.06 × 79,934.76
  4. Step 4: Simplify right side
    89,898.12x = 9,920,947,663.97
  5. Step 5: Solve for x
    x = 9,920,947,663.97/89,898.12
  6. Step 6: Final answer
    x = 110,357.68

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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.