Home / 156,284.48-215,684.16-88,309.28

Finding the Fourth Proportional to 156,284.48, 215,684.16 and 88,309.28

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Solution

The fourth proportional to 156,284.48, 215,684.16 and 88,309.28 is: 121,873.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,284.48 : 215,684.16 = 88,309.28 : x
  2. Step 2: Convert to fraction form
    156,284.48/215,684.16 = 88,309.28/x
  3. Step 3: Cross multiply
    156,284.48x = 215,684.16 × 88,309.28
  4. Step 4: Simplify right side
    156,284.48x = 19,046,912,877.00
  5. Step 5: Solve for x
    x = 19,046,912,877.00/156,284.48
  6. Step 6: Final answer
    x = 121,873.35

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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.