Home / 145,560.40-200,765.80-100,252.72

Finding the Fourth Proportional to 145,560.40, 200,765.80 and 100,252.72

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Solution

The fourth proportional to 145,560.40, 200,765.80 and 100,252.72 is: 138,274.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,560.40 : 200,765.80 = 100,252.72 : x
  2. Step 2: Convert to fraction form
    145,560.40/200,765.80 = 100,252.72/x
  3. Step 3: Cross multiply
    145,560.40x = 200,765.80 × 100,252.72
  4. Step 4: Simplify right side
    145,560.40x = 20,127,317,532.98
  5. Step 5: Solve for x
    x = 20,127,317,532.98/145,560.40
  6. Step 6: Final answer
    x = 138,274.68

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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.