Home / 155,711.81-214,882.29-84,091.84

Finding the Fourth Proportional to 155,711.81, 214,882.29 and 84,091.84

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Solution

The fourth proportional to 155,711.81, 214,882.29 and 84,091.84 is: 116,046.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,711.81 : 214,882.29 = 84,091.84 : x
  2. Step 2: Convert to fraction form
    155,711.81/214,882.29 = 84,091.84/x
  3. Step 3: Cross multiply
    155,711.81x = 214,882.29 × 84,091.84
  4. Step 4: Simplify right side
    155,711.81x = 18,069,847,149.51
  5. Step 5: Solve for x
    x = 18,069,847,149.51/155,711.81
  6. Step 6: Final answer
    x = 116,046.73

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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.