Home / 155,155.68-214,139.16-91,500.48

Finding the Fourth Proportional to 155,155.68, 214,139.16 and 91,500.48

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Solution

The fourth proportional to 155,155.68, 214,139.16 and 91,500.48 is: 126,285.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,155.68 : 214,139.16 = 91,500.48 : x
  2. Step 2: Convert to fraction form
    155,155.68/214,139.16 = 91,500.48/x
  3. Step 3: Cross multiply
    155,155.68x = 214,139.16 × 91,500.48
  4. Step 4: Simplify right side
    155,155.68x = 19,593,835,926.80
  5. Step 5: Solve for x
    x = 19,593,835,926.80/155,155.68
  6. Step 6: Final answer
    x = 126,285.01

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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.