Home / 250,113.15-345,155.78-135,391.23

Finding the Fourth Proportional to 250,113.15, 345,155.78 and 135,391.23

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Solution

The fourth proportional to 250,113.15, 345,155.78 and 135,391.23 is: 186,839.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,113.15 : 345,155.78 = 135,391.23 : x
  2. Step 2: Convert to fraction form
    250,113.15/345,155.78 = 135,391.23/x
  3. Step 3: Cross multiply
    250,113.15x = 345,155.78 × 135,391.23
  4. Step 4: Simplify right side
    250,113.15x = 46,731,065,934.29
  5. Step 5: Solve for x
    x = 46,731,065,934.29/250,113.15
  6. Step 6: Final answer
    x = 186,839.70

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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.