Home / 88,372.13-133,038.89-80,525.21

Finding the Fourth Proportional to 88,372.13, 133,038.89 and 80,525.21

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Solution

The fourth proportional to 88,372.13, 133,038.89 and 80,525.21 is: 121,225.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,372.13 : 133,038.89 = 80,525.21 : x
  2. Step 2: Convert to fraction form
    88,372.13/133,038.89 = 80,525.21/x
  3. Step 3: Cross multiply
    88,372.13x = 133,038.89 × 80,525.21
  4. Step 4: Simplify right side
    88,372.13x = 10,712,984,555.42
  5. Step 5: Solve for x
    x = 10,712,984,555.42/88,372.13
  6. Step 6: Final answer
    x = 121,225.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.