Home / 122,206.04-168,655.20-71,216

Finding the Fourth Proportional to 122,206.04, 168,655.20 and 71,216

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Solution

The fourth proportional to 122,206.04, 168,655.20 and 71,216 is: 98,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,206.04 : 168,655.20 = 71,216 : x
  2. Step 2: Convert to fraction form
    122,206.04/168,655.20 = 71,216/x
  3. Step 3: Cross multiply
    122,206.04x = 168,655.20 × 71,216
  4. Step 4: Simplify right side
    122,206.04x = 12,010,948,723.20
  5. Step 5: Solve for x
    x = 12,010,948,723.20/122,206.04
  6. Step 6: Final answer
    x = 98,284.41

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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.