Home / 109,178.96-150,665.22-61,432.28

Finding the Fourth Proportional to 109,178.96, 150,665.22 and 61,432.28

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Solution

The fourth proportional to 109,178.96, 150,665.22 and 61,432.28 is: 84,775.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,178.96 : 150,665.22 = 61,432.28 : x
  2. Step 2: Convert to fraction form
    109,178.96/150,665.22 = 61,432.28/x
  3. Step 3: Cross multiply
    109,178.96x = 150,665.22 × 61,432.28
  4. Step 4: Simplify right side
    109,178.96x = 9,255,707,981.30
  5. Step 5: Solve for x
    x = 9,255,707,981.30/109,178.96
  6. Step 6: Final answer
    x = 84,775.56

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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.