Home / 144,985.28-200,088.88-81,327.20

Finding the Fourth Proportional to 144,985.28, 200,088.88 and 81,327.20

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Solution

The fourth proportional to 144,985.28, 200,088.88 and 81,327.20 is: 112,236.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,985.28 : 200,088.88 = 81,327.20 : x
  2. Step 2: Convert to fraction form
    144,985.28/200,088.88 = 81,327.20/x
  3. Step 3: Cross multiply
    144,985.28x = 200,088.88 × 81,327.20
  4. Step 4: Simplify right side
    144,985.28x = 16,272,668,361.54
  5. Step 5: Solve for x
    x = 16,272,668,361.54/144,985.28
  6. Step 6: Final answer
    x = 112,236.69

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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.