Home / 97,081.12-134,013.28-65,268.48

Finding the Fourth Proportional to 97,081.12, 134,013.28 and 65,268.48

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Solution

The fourth proportional to 97,081.12, 134,013.28 and 65,268.48 is: 90,098.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,081.12 : 134,013.28 = 65,268.48 : x
  2. Step 2: Convert to fraction form
    97,081.12/134,013.28 = 65,268.48/x
  3. Step 3: Cross multiply
    97,081.12x = 134,013.28 × 65,268.48
  4. Step 4: Simplify right side
    97,081.12x = 8,746,843,085.41
  5. Step 5: Solve for x
    x = 8,746,843,085.41/97,081.12
  6. Step 6: Final answer
    x = 90,098.29

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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.