Home / 99,376.50-137,127.10-67,181.16

Finding the Fourth Proportional to 99,376.50, 137,127.10 and 67,181.16

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Solution

The fourth proportional to 99,376.50, 137,127.10 and 67,181.16 is: 92,701.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,376.50 : 137,127.10 = 67,181.16 : x
  2. Step 2: Convert to fraction form
    99,376.50/137,127.10 = 67,181.16/x
  3. Step 3: Cross multiply
    99,376.50x = 137,127.10 × 67,181.16
  4. Step 4: Simplify right side
    99,376.50x = 9,212,357,645.44
  5. Step 5: Solve for x
    x = 9,212,357,645.44/99,376.50
  6. Step 6: Final answer
    x = 92,701.57

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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.