Home / 99,775.19-149,657.31-60,321.71

Finding the Fourth Proportional to 99,775.19, 149,657.31 and 60,321.71

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Solution

The fourth proportional to 99,775.19, 149,657.31 and 60,321.71 is: 90,479.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,775.19 : 149,657.31 = 60,321.71 : x
  2. Step 2: Convert to fraction form
    99,775.19/149,657.31 = 60,321.71/x
  3. Step 3: Cross multiply
    99,775.19x = 149,657.31 × 60,321.71
  4. Step 4: Simplify right side
    99,775.19x = 9,027,583,803.31
  5. Step 5: Solve for x
    x = 9,027,583,803.31/99,775.19
  6. Step 6: Final answer
    x = 90,479.25

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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.