Home / 104,934.20-144,810.78-57,187.40

Finding the Fourth Proportional to 104,934.20, 144,810.78 and 57,187.40

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Solution

The fourth proportional to 104,934.20, 144,810.78 and 57,187.40 is: 78,919.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,934.20 : 144,810.78 = 57,187.40 : x
  2. Step 2: Convert to fraction form
    104,934.20/144,810.78 = 57,187.40/x
  3. Step 3: Cross multiply
    104,934.20x = 144,810.78 × 57,187.40
  4. Step 4: Simplify right side
    104,934.20x = 8,281,352,000.17
  5. Step 5: Solve for x
    x = 8,281,352,000.17/104,934.20
  6. Step 6: Final answer
    x = 78,919.48

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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.