Home / 129,288.35-193,531.58-69,976.91

Finding the Fourth Proportional to 129,288.35, 193,531.58 and 69,976.91

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Solution

The fourth proportional to 129,288.35, 193,531.58 and 69,976.91 is: 104,748.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,288.35 : 193,531.58 = 69,976.91 : x
  2. Step 2: Convert to fraction form
    129,288.35/193,531.58 = 69,976.91/x
  3. Step 3: Cross multiply
    129,288.35x = 193,531.58 × 69,976.91
  4. Step 4: Simplify right side
    129,288.35x = 13,542,742,352.18
  5. Step 5: Solve for x
    x = 13,542,742,352.18/129,288.35
  6. Step 6: Final answer
    x = 104,748.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.