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Finding the Fourth Proportional to 145,718.84, 218,586.90 and 45,882.20

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Solution

The fourth proportional to 145,718.84, 218,586.90 and 45,882.20 is: 68,826.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,718.84 : 218,586.90 = 45,882.20 : x
  2. Step 2: Convert to fraction form
    145,718.84/218,586.90 = 45,882.20/x
  3. Step 3: Cross multiply
    145,718.84x = 218,586.90 × 45,882.20
  4. Step 4: Simplify right side
    145,718.84x = 10,029,247,863.18
  5. Step 5: Solve for x
    x = 10,029,247,863.18/145,718.84
  6. Step 6: Final answer
    x = 68,826.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.