Home / 185,723.18-256,320.65-109,238.63

Finding the Fourth Proportional to 185,723.18, 256,320.65 and 109,238.63

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Solution

The fourth proportional to 185,723.18, 256,320.65 and 109,238.63 is: 150,762.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,723.18 : 256,320.65 = 109,238.63 : x
  2. Step 2: Convert to fraction form
    185,723.18/256,320.65 = 109,238.63/x
  3. Step 3: Cross multiply
    185,723.18x = 256,320.65 × 109,238.63
  4. Step 4: Simplify right side
    185,723.18x = 28,000,115,638.20
  5. Step 5: Solve for x
    x = 28,000,115,638.20/185,723.18
  6. Step 6: Final answer
    x = 150,762.63

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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.