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Finding the Fourth Proportional to 99,518.96, 137,191.08 and 75,604.12

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Solution

The fourth proportional to 99,518.96, 137,191.08 and 75,604.12 is: 104,223.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,518.96 : 137,191.08 = 75,604.12 : x
  2. Step 2: Convert to fraction form
    99,518.96/137,191.08 = 75,604.12/x
  3. Step 3: Cross multiply
    99,518.96x = 137,191.08 × 75,604.12
  4. Step 4: Simplify right side
    99,518.96x = 10,372,210,875.25
  5. Step 5: Solve for x
    x = 10,372,210,875.25/99,518.96
  6. Step 6: Final answer
    x = 104,223.47

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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.