Home / 136,210.18-188,062.66-85,243.56

Finding the Fourth Proportional to 136,210.18, 188,062.66 and 85,243.56

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Solution

The fourth proportional to 136,210.18, 188,062.66 and 85,243.56 is: 117,694.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,210.18 : 188,062.66 = 85,243.56 : x
  2. Step 2: Convert to fraction form
    136,210.18/188,062.66 = 85,243.56/x
  3. Step 3: Cross multiply
    136,210.18x = 188,062.66 × 85,243.56
  4. Step 4: Simplify right side
    136,210.18x = 16,031,130,641.47
  5. Step 5: Solve for x
    x = 16,031,130,641.47/136,210.18
  6. Step 6: Final answer
    x = 117,694.07

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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.