Home / 155,423.48-214,561.86-101,790.68

Finding the Fourth Proportional to 155,423.48, 214,561.86 and 101,790.68

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Solution

The fourth proportional to 155,423.48, 214,561.86 and 101,790.68 is: 140,521.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,423.48 : 214,561.86 = 101,790.68 : x
  2. Step 2: Convert to fraction form
    155,423.48/214,561.86 = 101,790.68/x
  3. Step 3: Cross multiply
    155,423.48x = 214,561.86 × 101,790.68
  4. Step 4: Simplify right side
    155,423.48x = 21,840,397,631.46
  5. Step 5: Solve for x
    x = 21,840,397,631.46/155,423.48
  6. Step 6: Final answer
    x = 140,521.87

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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.