Home / 99,330.06-148,991.74-43,170.16

Finding the Fourth Proportional to 99,330.06, 148,991.74 and 43,170.16

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Solution

The fourth proportional to 99,330.06, 148,991.74 and 43,170.16 is: 64,753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,330.06 : 148,991.74 = 43,170.16 : x
  2. Step 2: Convert to fraction form
    99,330.06/148,991.74 = 43,170.16/x
  3. Step 3: Cross multiply
    99,330.06x = 148,991.74 × 43,170.16
  4. Step 4: Simplify right side
    99,330.06x = 6,431,997,254.48
  5. Step 5: Solve for x
    x = 6,431,997,254.48/99,330.06
  6. Step 6: Final answer
    x = 64,753.78

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1.5x scale

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.