Home / 154,230.12-212,752.08-89,692.29

Finding the Fourth Proportional to 154,230.12, 212,752.08 and 89,692.29

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Solution

The fourth proportional to 154,230.12, 212,752.08 and 89,692.29 is: 123,725.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,230.12 : 212,752.08 = 89,692.29 : x
  2. Step 2: Convert to fraction form
    154,230.12/212,752.08 = 89,692.29/x
  3. Step 3: Cross multiply
    154,230.12x = 212,752.08 × 89,692.29
  4. Step 4: Simplify right side
    154,230.12x = 19,082,221,257.46
  5. Step 5: Solve for x
    x = 19,082,221,257.46/154,230.12
  6. Step 6: Final answer
    x = 123,725.65

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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.