Home / 99,512.95-137,182.80-75,598.12

Finding the Fourth Proportional to 99,512.95, 137,182.80 and 75,598.12

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Solution

The fourth proportional to 99,512.95, 137,182.80 and 75,598.12 is: 104,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,512.95 : 137,182.80 = 75,598.12 : x
  2. Step 2: Convert to fraction form
    99,512.95/137,182.80 = 75,598.12/x
  3. Step 3: Cross multiply
    99,512.95x = 137,182.80 × 75,598.12
  4. Step 4: Simplify right side
    99,512.95x = 10,370,761,776.34
  5. Step 5: Solve for x
    x = 10,370,761,776.34/99,512.95
  6. Step 6: Final answer
    x = 104,215.20

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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.