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Finding the Fourth Proportional to 114,407.87, 157,707.85 and 80,320.73

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Solution

The fourth proportional to 114,407.87, 157,707.85 and 80,320.73 is: 110,719.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,407.87 : 157,707.85 = 80,320.73 : x
  2. Step 2: Convert to fraction form
    114,407.87/157,707.85 = 80,320.73/x
  3. Step 3: Cross multiply
    114,407.87x = 157,707.85 × 80,320.73
  4. Step 4: Simplify right side
    114,407.87x = 12,667,209,638.73
  5. Step 5: Solve for x
    x = 12,667,209,638.73/114,407.87
  6. Step 6: Final answer
    x = 110,719.74

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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.