Home / 176,784.82-243,968.48-100,307.10

Finding the Fourth Proportional to 176,784.82, 243,968.48 and 100,307.10

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Solution

The fourth proportional to 176,784.82, 243,968.48 and 100,307.10 is: 138,426.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,784.82 : 243,968.48 = 100,307.10 : x
  2. Step 2: Convert to fraction form
    176,784.82/243,968.48 = 100,307.10/x
  3. Step 3: Cross multiply
    176,784.82x = 243,968.48 × 100,307.10
  4. Step 4: Simplify right side
    176,784.82x = 24,471,770,720.21
  5. Step 5: Solve for x
    x = 24,471,770,720.21/176,784.82
  6. Step 6: Final answer
    x = 138,426.88

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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.