Home / 145,079.26-200,209.49-81,417.05

Finding the Fourth Proportional to 145,079.26, 200,209.49 and 81,417.05

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Solution

The fourth proportional to 145,079.26, 200,209.49 and 81,417.05 is: 112,355.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,079.26 : 200,209.49 = 81,417.05 : x
  2. Step 2: Convert to fraction form
    145,079.26/200,209.49 = 81,417.05/x
  3. Step 3: Cross multiply
    145,079.26x = 200,209.49 × 81,417.05
  4. Step 4: Simplify right side
    145,079.26x = 16,300,466,456.56
  5. Step 5: Solve for x
    x = 16,300,466,456.56/145,079.26
  6. Step 6: Final answer
    x = 112,355.59

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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.