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Finding the Fourth Proportional to 159,130.74, 219,600.15 and 91,169.70

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Solution

The fourth proportional to 159,130.74, 219,600.15 and 91,169.70 is: 125,814.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,130.74 : 219,600.15 = 91,169.70 : x
  2. Step 2: Convert to fraction form
    159,130.74/219,600.15 = 91,169.70/x
  3. Step 3: Cross multiply
    159,130.74x = 219,600.15 × 91,169.70
  4. Step 4: Simplify right side
    159,130.74x = 20,020,879,795.46
  5. Step 5: Solve for x
    x = 20,020,879,795.46/159,130.74
  6. Step 6: Final answer
    x = 125,814.03

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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.