Home / 145,326.30-200,648.08-129,965.18

Finding the Fourth Proportional to 145,326.30, 200,648.08 and 129,965.18

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Solution

The fourth proportional to 145,326.30, 200,648.08 and 129,965.18 is: 179,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,326.30 : 200,648.08 = 129,965.18 : x
  2. Step 2: Convert to fraction form
    145,326.30/200,648.08 = 129,965.18/x
  3. Step 3: Cross multiply
    145,326.30x = 200,648.08 × 129,965.18
  4. Step 4: Simplify right side
    145,326.30x = 26,077,263,833.85
  5. Step 5: Solve for x
    x = 26,077,263,833.85/145,326.30
  6. Step 6: Final answer
    x = 179,439.40

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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.