Home / 97,443.84-134,360.40-71,987.04

Finding the Fourth Proportional to 97,443.84, 134,360.40 and 71,987.04

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Solution

The fourth proportional to 97,443.84, 134,360.40 and 71,987.04 is: 99,259.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,443.84 : 134,360.40 = 71,987.04 : x
  2. Step 2: Convert to fraction form
    97,443.84/134,360.40 = 71,987.04/x
  3. Step 3: Cross multiply
    97,443.84x = 134,360.40 × 71,987.04
  4. Step 4: Simplify right side
    97,443.84x = 9,672,207,489.22
  5. Step 5: Solve for x
    x = 9,672,207,489.22/97,443.84
  6. Step 6: Final answer
    x = 99,259.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.