Home / 102,677.75-141,698.34-57,357.65

Finding the Fourth Proportional to 102,677.75, 141,698.34 and 57,357.65

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Solution

The fourth proportional to 102,677.75, 141,698.34 and 57,357.65 is: 79,155.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,677.75 : 141,698.34 = 57,357.65 : x
  2. Step 2: Convert to fraction form
    102,677.75/141,698.34 = 57,357.65/x
  3. Step 3: Cross multiply
    102,677.75x = 141,698.34 × 57,357.65
  4. Step 4: Simplify right side
    102,677.75x = 8,127,483,791.30
  5. Step 5: Solve for x
    x = 8,127,483,791.30/102,677.75
  6. Step 6: Final answer
    x = 79,155.26

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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.