Home / 115,279.02-172,684.80-65,253.96

Finding the Fourth Proportional to 115,279.02, 172,684.80 and 65,253.96

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Solution

The fourth proportional to 115,279.02, 172,684.80 and 65,253.96 is: 97,748.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,279.02 : 172,684.80 = 65,253.96 : x
  2. Step 2: Convert to fraction form
    115,279.02/172,684.80 = 65,253.96/x
  3. Step 3: Cross multiply
    115,279.02x = 172,684.80 × 65,253.96
  4. Step 4: Simplify right side
    115,279.02x = 11,268,367,031.81
  5. Step 5: Solve for x
    x = 11,268,367,031.81/115,279.02
  6. Step 6: Final answer
    x = 97,748.64

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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.