Home / 109,378.13-150,925.41-61,630.45

Finding the Fourth Proportional to 109,378.13, 150,925.41 and 61,630.45

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Solution

The fourth proportional to 109,378.13, 150,925.41 and 61,630.45 is: 85,040.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,378.13 : 150,925.41 = 61,630.45 : x
  2. Step 2: Convert to fraction form
    109,378.13/150,925.41 = 61,630.45/x
  3. Step 3: Cross multiply
    109,378.13x = 150,925.41 × 61,630.45
  4. Step 4: Simplify right side
    109,378.13x = 9,301,600,557.42
  5. Step 5: Solve for x
    x = 9,301,600,557.42/109,378.13
  6. Step 6: Final answer
    x = 85,040.78

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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.