Home / 109,426.55-150,999.59-61,691.63

Finding the Fourth Proportional to 109,426.55, 150,999.59 and 61,691.63

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Solution

The fourth proportional to 109,426.55, 150,999.59 and 61,691.63 is: 85,129.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,426.55 : 150,999.59 = 61,691.63 : x
  2. Step 2: Convert to fraction form
    109,426.55/150,999.59 = 61,691.63/x
  3. Step 3: Cross multiply
    109,426.55x = 150,999.59 × 61,691.63
  4. Step 4: Simplify right side
    109,426.55x = 9,315,410,235.66
  5. Step 5: Solve for x
    x = 9,315,410,235.66/109,426.55
  6. Step 6: Final answer
    x = 85,129.35

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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.