Home / 99,484.62-137,339.50-76,772.58

Finding the Fourth Proportional to 99,484.62, 137,339.50 and 76,772.58

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Solution

The fourth proportional to 99,484.62, 137,339.50 and 76,772.58 is: 105,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,484.62 : 137,339.50 = 76,772.58 : x
  2. Step 2: Convert to fraction form
    99,484.62/137,339.50 = 76,772.58/x
  3. Step 3: Cross multiply
    99,484.62x = 137,339.50 × 76,772.58
  4. Step 4: Simplify right side
    99,484.62x = 10,543,907,750.91
  5. Step 5: Solve for x
    x = 10,543,907,750.91/99,484.62
  6. Step 6: Final answer
    x = 105,985.30

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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.