Home / 99,153.24-136,884.78-76,442.46

Finding the Fourth Proportional to 99,153.24, 136,884.78 and 76,442.46

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Solution

The fourth proportional to 99,153.24, 136,884.78 and 76,442.46 is: 105,531.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,153.24 : 136,884.78 = 76,442.46 : x
  2. Step 2: Convert to fraction form
    99,153.24/136,884.78 = 76,442.46/x
  3. Step 3: Cross multiply
    99,153.24x = 136,884.78 × 76,442.46
  4. Step 4: Simplify right side
    99,153.24x = 10,463,809,319.76
  5. Step 5: Solve for x
    x = 10,463,809,319.76/99,153.24
  6. Step 6: Final answer
    x = 105,531.69

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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.