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Finding the Fourth Proportional to 158,624.10, 218,915.30 and 87,018.08

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Solution

The fourth proportional to 158,624.10, 218,915.30 and 87,018.08 is: 120,092.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,624.10 : 218,915.30 = 87,018.08 : x
  2. Step 2: Convert to fraction form
    158,624.10/218,915.30 = 87,018.08/x
  3. Step 3: Cross multiply
    158,624.10x = 218,915.30 × 87,018.08
  4. Step 4: Simplify right side
    158,624.10x = 19,049,589,088.62
  5. Step 5: Solve for x
    x = 19,049,589,088.62/158,624.10
  6. Step 6: Final answer
    x = 120,092.65

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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.