Home / 146,150.15-201,720.90-85,740.20

Finding the Fourth Proportional to 146,150.15, 201,720.90 and 85,740.20

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Solution

The fourth proportional to 146,150.15, 201,720.90 and 85,740.20 is: 118,341.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,150.15 : 201,720.90 = 85,740.20 : x
  2. Step 2: Convert to fraction form
    146,150.15/201,720.90 = 85,740.20/x
  3. Step 3: Cross multiply
    146,150.15x = 201,720.90 × 85,740.20
  4. Step 4: Simplify right side
    146,150.15x = 17,295,589,301.58
  5. Step 5: Solve for x
    x = 17,295,589,301.58/146,150.15
  6. Step 6: Final answer
    x = 118,341.24

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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.