Home / 170,561.64-235,439.91-128,243.10

Finding the Fourth Proportional to 170,561.64, 235,439.91 and 128,243.10

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Solution

The fourth proportional to 170,561.64, 235,439.91 and 128,243.10 is: 177,024.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,561.64 : 235,439.91 = 128,243.10 : x
  2. Step 2: Convert to fraction form
    170,561.64/235,439.91 = 128,243.10/x
  3. Step 3: Cross multiply
    170,561.64x = 235,439.91 × 128,243.10
  4. Step 4: Simplify right side
    170,561.64x = 30,193,543,922.12
  5. Step 5: Solve for x
    x = 30,193,543,922.12/170,561.64
  6. Step 6: Final answer
    x = 177,024.24

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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.