Home / 99,511.95-137,181.42-75,597.12

Finding the Fourth Proportional to 99,511.95, 137,181.42 and 75,597.12

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Solution

The fourth proportional to 99,511.95, 137,181.42 and 75,597.12 is: 104,213.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,511.95 : 137,181.42 = 75,597.12 : x
  2. Step 2: Convert to fraction form
    99,511.95/137,181.42 = 75,597.12/x
  3. Step 3: Cross multiply
    99,511.95x = 137,181.42 × 75,597.12
  4. Step 4: Simplify right side
    99,511.95x = 10,370,520,269.51
  5. Step 5: Solve for x
    x = 10,370,520,269.51/99,511.95
  6. Step 6: Final answer
    x = 104,213.82

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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.