Home / 136,340.22-188,143.99-75,909.16

Finding the Fourth Proportional to 136,340.22, 188,143.99 and 75,909.16

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Solution

The fourth proportional to 136,340.22, 188,143.99 and 75,909.16 is: 104,751.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,340.22 : 188,143.99 = 75,909.16 : x
  2. Step 2: Convert to fraction form
    136,340.22/188,143.99 = 75,909.16/x
  3. Step 3: Cross multiply
    136,340.22x = 188,143.99 × 75,909.16
  4. Step 4: Simplify right side
    136,340.22x = 14,281,851,579.82
  5. Step 5: Solve for x
    x = 14,281,851,579.82/136,340.22
  6. Step 6: Final answer
    x = 104,751.57

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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.