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Finding the Fourth Proportional to 145,156.48, 217,806.06 and 65,250.90

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Solution

The fourth proportional to 145,156.48, 217,806.06 and 65,250.90 is: 97,908.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,156.48 : 217,806.06 = 65,250.90 : x
  2. Step 2: Convert to fraction form
    145,156.48/217,806.06 = 65,250.90/x
  3. Step 3: Cross multiply
    145,156.48x = 217,806.06 × 65,250.90
  4. Step 4: Simplify right side
    145,156.48x = 14,212,041,440.45
  5. Step 5: Solve for x
    x = 14,212,041,440.45/145,156.48
  6. Step 6: Final answer
    x = 97,908.42

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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.