Home / 84,655.74-126,987.66-69,837.18

Finding the Fourth Proportional to 84,655.74, 126,987.66 and 69,837.18

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Solution

The fourth proportional to 84,655.74, 126,987.66 and 69,837.18 is: 104,759.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,655.74 : 126,987.66 = 69,837.18 : x
  2. Step 2: Convert to fraction form
    84,655.74/126,987.66 = 69,837.18/x
  3. Step 3: Cross multiply
    84,655.74x = 126,987.66 × 69,837.18
  4. Step 4: Simplify right side
    84,655.74x = 8,868,460,069.20
  5. Step 5: Solve for x
    x = 8,868,460,069.20/84,655.74
  6. Step 6: Final answer
    x = 104,759.11

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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.