Home / 145,385.40-217,728.18-98,496.12

Finding the Fourth Proportional to 145,385.40, 217,728.18 and 98,496.12

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Solution

The fourth proportional to 145,385.40, 217,728.18 and 98,496.12 is: 147,507.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,385.40 : 217,728.18 = 98,496.12 : x
  2. Step 2: Convert to fraction form
    145,385.40/217,728.18 = 98,496.12/x
  3. Step 3: Cross multiply
    145,385.40x = 217,728.18 × 98,496.12
  4. Step 4: Simplify right side
    145,385.40x = 21,445,380,944.66
  5. Step 5: Solve for x
    x = 21,445,380,944.66/145,385.40
  6. Step 6: Final answer
    x = 147,507.12

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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.