Home / 145,272.76-200,475.20-81,609.19

Finding the Fourth Proportional to 145,272.76, 200,475.20 and 81,609.19

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Solution

The fourth proportional to 145,272.76, 200,475.20 and 81,609.19 is: 112,620.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,272.76 : 200,475.20 = 81,609.19 : x
  2. Step 2: Convert to fraction form
    145,272.76/200,475.20 = 81,609.19/x
  3. Step 3: Cross multiply
    145,272.76x = 200,475.20 × 81,609.19
  4. Step 4: Simplify right side
    145,272.76x = 16,360,618,389.92
  5. Step 5: Solve for x
    x = 16,360,618,389.92/145,272.76
  6. Step 6: Final answer
    x = 112,620.00

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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.