Home / 100,244.59-138,303.47-57,193.15

Finding the Fourth Proportional to 100,244.59, 138,303.47 and 57,193.15

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Solution

The fourth proportional to 100,244.59, 138,303.47 and 57,193.15 is: 78,907.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,244.59 : 138,303.47 = 57,193.15 : x
  2. Step 2: Convert to fraction form
    100,244.59/138,303.47 = 57,193.15/x
  3. Step 3: Cross multiply
    100,244.59x = 138,303.47 × 57,193.15
  4. Step 4: Simplify right side
    100,244.59x = 7,910,010,932.35
  5. Step 5: Solve for x
    x = 7,910,010,932.35/100,244.59
  6. Step 6: Final answer
    x = 78,907.11

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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.