Home / 88,424.16-132,636.42-72,808.98

Finding the Fourth Proportional to 88,424.16, 132,636.42 and 72,808.98

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Solution

The fourth proportional to 88,424.16, 132,636.42 and 72,808.98 is: 109,213.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,424.16 : 132,636.42 = 72,808.98 : x
  2. Step 2: Convert to fraction form
    88,424.16/132,636.42 = 72,808.98/x
  3. Step 3: Cross multiply
    88,424.16x = 132,636.42 × 72,808.98
  4. Step 4: Simplify right side
    88,424.16x = 9,657,122,451.05
  5. Step 5: Solve for x
    x = 9,657,122,451.05/88,424.16
  6. Step 6: Final answer
    x = 109,213.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.