Home / 97,985.68-146,906.16-31,387.28

Finding the Fourth Proportional to 97,985.68, 146,906.16 and 31,387.28

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Solution

The fourth proportional to 97,985.68, 146,906.16 and 31,387.28 is: 47,057.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,985.68 : 146,906.16 = 31,387.28 : x
  2. Step 2: Convert to fraction form
    97,985.68/146,906.16 = 31,387.28/x
  3. Step 3: Cross multiply
    97,985.68x = 146,906.16 × 31,387.28
  4. Step 4: Simplify right side
    97,985.68x = 4,610,984,777.64
  5. Step 5: Solve for x
    x = 4,610,984,777.64/97,985.68
  6. Step 6: Final answer
    x = 47,057.74

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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.