Home / 145,242.12-200,454.30-81,584.76

Finding the Fourth Proportional to 145,242.12, 200,454.30 and 81,584.76

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Solution

The fourth proportional to 145,242.12, 200,454.30 and 81,584.76 is: 112,598.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,242.12 : 200,454.30 = 81,584.76 : x
  2. Step 2: Convert to fraction form
    145,242.12/200,454.30 = 81,584.76/x
  3. Step 3: Cross multiply
    145,242.12x = 200,454.30 × 81,584.76
  4. Step 4: Simplify right side
    145,242.12x = 16,354,015,956.47
  5. Step 5: Solve for x
    x = 16,354,015,956.47/145,242.12
  6. Step 6: Final answer
    x = 112,598.30

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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.