Home / 97,061.96-145,617.11-77,146.60

Finding the Fourth Proportional to 97,061.96, 145,617.11 and 77,146.60

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Solution

The fourth proportional to 97,061.96, 145,617.11 and 77,146.60 is: 115,739.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,061.96 : 145,617.11 = 77,146.60 : x
  2. Step 2: Convert to fraction form
    97,061.96/145,617.11 = 77,146.60/x
  3. Step 3: Cross multiply
    97,061.96x = 145,617.11 × 77,146.60
  4. Step 4: Simplify right side
    97,061.96x = 11,233,864,938.33
  5. Step 5: Solve for x
    x = 11,233,864,938.33/97,061.96
  6. Step 6: Final answer
    x = 115,739.11

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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.