Home / 134,877.15-186,016.20-81,152.13

Finding the Fourth Proportional to 134,877.15, 186,016.20 and 81,152.13

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Solution

The fourth proportional to 134,877.15, 186,016.20 and 81,152.13 is: 111,921.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,877.15 : 186,016.20 = 81,152.13 : x
  2. Step 2: Convert to fraction form
    134,877.15/186,016.20 = 81,152.13/x
  3. Step 3: Cross multiply
    134,877.15x = 186,016.20 × 81,152.13
  4. Step 4: Simplify right side
    134,877.15x = 15,095,610,191.41
  5. Step 5: Solve for x
    x = 15,095,610,191.41/134,877.15
  6. Step 6: Final answer
    x = 111,921.18

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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.