Home / 158,308.48-218,466.08-85,712.13

Finding the Fourth Proportional to 158,308.48, 218,466.08 and 85,712.13

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Solution

The fourth proportional to 158,308.48, 218,466.08 and 85,712.13 is: 118,282.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,308.48 : 218,466.08 = 85,712.13 : x
  2. Step 2: Convert to fraction form
    158,308.48/218,466.08 = 85,712.13/x
  3. Step 3: Cross multiply
    158,308.48x = 218,466.08 × 85,712.13
  4. Step 4: Simplify right side
    158,308.48x = 18,725,193,049.55
  5. Step 5: Solve for x
    x = 18,725,193,049.55/158,308.48
  6. Step 6: Final answer
    x = 118,282.94

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1.5x scale

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.