Home / 134,877.40-186,016.54-81,152.38

Finding the Fourth Proportional to 134,877.40, 186,016.54 and 81,152.38

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Solution

The fourth proportional to 134,877.40, 186,016.54 and 81,152.38 is: 111,921.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,877.40 : 186,016.54 = 81,152.38 : x
  2. Step 2: Convert to fraction form
    134,877.40/186,016.54 = 81,152.38/x
  3. Step 3: Cross multiply
    134,877.40x = 186,016.54 × 81,152.38
  4. Step 4: Simplify right side
    134,877.40x = 15,095,684,475.32
  5. Step 5: Solve for x
    x = 15,095,684,475.32/134,877.40
  6. Step 6: Final answer
    x = 111,921.53

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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.