Home / 78,127.48-117,167.06-28,201.23

Finding the Fourth Proportional to 78,127.48, 117,167.06 and 28,201.23

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Solution

The fourth proportional to 78,127.48, 117,167.06 and 28,201.23 is: 42,293.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,127.48 : 117,167.06 = 28,201.23 : x
  2. Step 2: Convert to fraction form
    78,127.48/117,167.06 = 28,201.23/x
  3. Step 3: Cross multiply
    78,127.48x = 117,167.06 × 28,201.23
  4. Step 4: Simplify right side
    78,127.48x = 3,304,255,207.48
  5. Step 5: Solve for x
    x = 3,304,255,207.48/78,127.48
  6. Step 6: Final answer
    x = 42,293.12

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1.5x scale

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.