Home / 145,561.40-200,767.18-100,253.72

Finding the Fourth Proportional to 145,561.40, 200,767.18 and 100,253.72

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Solution

The fourth proportional to 145,561.40, 200,767.18 and 100,253.72 is: 138,276.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,561.40 : 200,767.18 = 100,253.72 : x
  2. Step 2: Convert to fraction form
    145,561.40/200,767.18 = 100,253.72/x
  3. Step 3: Cross multiply
    145,561.40x = 200,767.18 × 100,253.72
  4. Step 4: Simplify right side
    145,561.40x = 20,127,656,648.91
  5. Step 5: Solve for x
    x = 20,127,656,648.91/145,561.40
  6. Step 6: Final answer
    x = 138,276.06

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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.