Home / 145,116.64-200,259.30-81,452.80

Finding the Fourth Proportional to 145,116.64, 200,259.30 and 81,452.80

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Solution

The fourth proportional to 145,116.64, 200,259.30 and 81,452.80 is: 112,403.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,116.64 : 200,259.30 = 81,452.80 : x
  2. Step 2: Convert to fraction form
    145,116.64/200,259.30 = 81,452.80/x
  3. Step 3: Cross multiply
    145,116.64x = 200,259.30 × 81,452.80
  4. Step 4: Simplify right side
    145,116.64x = 16,311,680,711.04
  5. Step 5: Solve for x
    x = 16,311,680,711.04/145,116.64
  6. Step 6: Final answer
    x = 112,403.93

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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.