Home / 155,521.16-214,423.02-101,720.96

Finding the Fourth Proportional to 155,521.16, 214,423.02 and 101,720.96

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Solution

The fourth proportional to 155,521.16, 214,423.02 and 101,720.96 is: 140,246.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,521.16 : 214,423.02 = 101,720.96 : x
  2. Step 2: Convert to fraction form
    155,521.16/214,423.02 = 101,720.96/x
  3. Step 3: Cross multiply
    155,521.16x = 214,423.02 × 101,720.96
  4. Step 4: Simplify right side
    155,521.16x = 21,811,315,440.50
  5. Step 5: Solve for x
    x = 21,811,315,440.50/155,521.16
  6. Step 6: Final answer
    x = 140,246.61

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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.