Home / 155,214.57-214,254.65-90,704.82

Finding the Fourth Proportional to 155,214.57, 214,254.65 and 90,704.82

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Solution

The fourth proportional to 155,214.57, 214,254.65 and 90,704.82 is: 125,206.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,214.57 : 214,254.65 = 90,704.82 : x
  2. Step 2: Convert to fraction form
    155,214.57/214,254.65 = 90,704.82/x
  3. Step 3: Cross multiply
    155,214.57x = 214,254.65 × 90,704.82
  4. Step 4: Simplify right side
    155,214.57x = 19,433,929,982.42
  5. Step 5: Solve for x
    x = 19,433,929,982.42/155,214.57
  6. Step 6: Final answer
    x = 125,206.86

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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.