Home / 153,815.04-212,269.84-89,279.44

Finding the Fourth Proportional to 153,815.04, 212,269.84 and 89,279.44

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Solution

The fourth proportional to 153,815.04, 212,269.84 and 89,279.44 is: 123,208.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,815.04 : 212,269.84 = 89,279.44 : x
  2. Step 2: Convert to fraction form
    153,815.04/212,269.84 = 89,279.44/x
  3. Step 3: Cross multiply
    153,815.04x = 212,269.84 × 89,279.44
  4. Step 4: Simplify right side
    153,815.04x = 18,951,332,444.09
  5. Step 5: Solve for x
    x = 18,951,332,444.09/153,815.04
  6. Step 6: Final answer
    x = 123,208.58

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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.