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Finding the Fourth Proportional to 145,000.96, 217,492.76 and 45,147.10

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Solution

The fourth proportional to 145,000.96, 217,492.76 and 45,147.10 is: 67,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,000.96 : 217,492.76 = 45,147.10 : x
  2. Step 2: Convert to fraction form
    145,000.96/217,492.76 = 45,147.10/x
  3. Step 3: Cross multiply
    145,000.96x = 217,492.76 × 45,147.10
  4. Step 4: Simplify right side
    145,000.96x = 9,819,167,385.00
  5. Step 5: Solve for x
    x = 9,819,167,385.00/145,000.96
  6. Step 6: Final answer
    x = 67,717.95

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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.