Home / 110,040.66-151,856.74-64,720.55

Finding the Fourth Proportional to 110,040.66, 151,856.74 and 64,720.55

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Solution

The fourth proportional to 110,040.66, 151,856.74 and 64,720.55 is: 89,314.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,040.66 : 151,856.74 = 64,720.55 : x
  2. Step 2: Convert to fraction form
    110,040.66/151,856.74 = 64,720.55/x
  3. Step 3: Cross multiply
    110,040.66x = 151,856.74 × 64,720.55
  4. Step 4: Simplify right side
    110,040.66x = 9,828,250,974.72
  5. Step 5: Solve for x
    x = 9,828,250,974.72/110,040.66
  6. Step 6: Final answer
    x = 89,314.73

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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.