Home / 115,245.12-172,864.38-62,985.60

Finding the Fourth Proportional to 115,245.12, 172,864.38 and 62,985.60

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Solution

The fourth proportional to 115,245.12, 172,864.38 and 62,985.60 is: 94,476.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,245.12 : 172,864.38 = 62,985.60 : x
  2. Step 2: Convert to fraction form
    115,245.12/172,864.38 = 62,985.60/x
  3. Step 3: Cross multiply
    115,245.12x = 172,864.38 × 62,985.60
  4. Step 4: Simplify right side
    115,245.12x = 10,887,966,692.93
  5. Step 5: Solve for x
    x = 10,887,966,692.93/115,245.12
  6. Step 6: Final answer
    x = 94,476.60

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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.