Home / 96,938.60-145,427.10-81,463.40

Finding the Fourth Proportional to 96,938.60, 145,427.10 and 81,463.40

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Solution

The fourth proportional to 96,938.60, 145,427.10 and 81,463.40 is: 122,211.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,938.60 : 145,427.10 = 81,463.40 : x
  2. Step 2: Convert to fraction form
    96,938.60/145,427.10 = 81,463.40/x
  3. Step 3: Cross multiply
    96,938.60x = 145,427.10 × 81,463.40
  4. Step 4: Simplify right side
    96,938.60x = 11,846,986,018.14
  5. Step 5: Solve for x
    x = 11,846,986,018.14/96,938.60
  6. Step 6: Final answer
    x = 122,211.23

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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.