Home / 97,476.71-145,882.38-81,699.55

Finding the Fourth Proportional to 97,476.71, 145,882.38 and 81,699.55

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Solution

The fourth proportional to 97,476.71, 145,882.38 and 81,699.55 is: 122,270.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,476.71 : 145,882.38 = 81,699.55 : x
  2. Step 2: Convert to fraction form
    97,476.71/145,882.38 = 81,699.55/x
  3. Step 3: Cross multiply
    97,476.71x = 145,882.38 × 81,699.55
  4. Step 4: Simplify right side
    97,476.71x = 11,918,524,798.93
  5. Step 5: Solve for x
    x = 11,918,524,798.93/97,476.71
  6. Step 6: Final answer
    x = 122,270.49

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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.