Home / 154,318.14-212,873.28-89,780.16

Finding the Fourth Proportional to 154,318.14, 212,873.28 and 89,780.16

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Solution

The fourth proportional to 154,318.14, 212,873.28 and 89,780.16 is: 123,846.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,318.14 : 212,873.28 = 89,780.16 : x
  2. Step 2: Convert to fraction form
    154,318.14/212,873.28 = 89,780.16/x
  3. Step 3: Cross multiply
    154,318.14x = 212,873.28 × 89,780.16
  4. Step 4: Simplify right side
    154,318.14x = 19,111,797,138.12
  5. Step 5: Solve for x
    x = 19,111,797,138.12/154,318.14
  6. Step 6: Final answer
    x = 123,846.73

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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.