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Finding the Fourth Proportional to 147,369.16, 203,369.70 and 80,301.16

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Solution

The fourth proportional to 147,369.16, 203,369.70 and 80,301.16 is: 110,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,369.16 : 203,369.70 = 80,301.16 : x
  2. Step 2: Convert to fraction form
    147,369.16/203,369.70 = 80,301.16/x
  3. Step 3: Cross multiply
    147,369.16x = 203,369.70 × 80,301.16
  4. Step 4: Simplify right side
    147,369.16x = 16,330,822,818.85
  5. Step 5: Solve for x
    x = 16,330,822,818.85/147,369.16
  6. Step 6: Final answer
    x = 110,815.74

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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.