Home / 155,042.53-213,945.55-93,811.53

Finding the Fourth Proportional to 155,042.53, 213,945.55 and 93,811.53

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Solution

The fourth proportional to 155,042.53, 213,945.55 and 93,811.53 is: 129,451.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,042.53 : 213,945.55 = 93,811.53 : x
  2. Step 2: Convert to fraction form
    155,042.53/213,945.55 = 93,811.53/x
  3. Step 3: Cross multiply
    155,042.53x = 213,945.55 × 93,811.53
  4. Step 4: Simplify right side
    155,042.53x = 20,070,559,382.19
  5. Step 5: Solve for x
    x = 20,070,559,382.19/155,042.53
  6. Step 6: Final answer
    x = 129,451.96

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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.