Home / 122,063.47-168,438.72-74,332.20

Finding the Fourth Proportional to 122,063.47, 168,438.72 and 74,332.20

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Solution

The fourth proportional to 122,063.47, 168,438.72 and 74,332.20 is: 102,573.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,063.47 : 168,438.72 = 74,332.20 : x
  2. Step 2: Convert to fraction form
    122,063.47/168,438.72 = 74,332.20/x
  3. Step 3: Cross multiply
    122,063.47x = 168,438.72 × 74,332.20
  4. Step 4: Simplify right side
    122,063.47x = 12,520,420,622.78
  5. Step 5: Solve for x
    x = 12,520,420,622.78/122,063.47
  6. Step 6: Final answer
    x = 102,573.04

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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.