Home / 110,040.15-151,856.05-64,720.05

Finding the Fourth Proportional to 110,040.15, 151,856.05 and 64,720.05

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Solution

The fourth proportional to 110,040.15, 151,856.05 and 64,720.05 is: 89,314.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,040.15 : 151,856.05 = 64,720.05 : x
  2. Step 2: Convert to fraction form
    110,040.15/151,856.05 = 64,720.05/x
  3. Step 3: Cross multiply
    110,040.15x = 151,856.05 × 64,720.05
  4. Step 4: Simplify right side
    110,040.15x = 9,828,130,538.89
  5. Step 5: Solve for x
    x = 9,828,130,538.89/110,040.15
  6. Step 6: Final answer
    x = 89,314.04

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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.