Home / 134,913.60-186,040.80-87,091.20

Finding the Fourth Proportional to 134,913.60, 186,040.80 and 87,091.20

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Solution

The fourth proportional to 134,913.60, 186,040.80 and 87,091.20 is: 120,095.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,913.60 : 186,040.80 = 87,091.20 : x
  2. Step 2: Convert to fraction form
    134,913.60/186,040.80 = 87,091.20/x
  3. Step 3: Cross multiply
    134,913.60x = 186,040.80 × 87,091.20
  4. Step 4: Simplify right side
    134,913.60x = 16,202,516,520.96
  5. Step 5: Solve for x
    x = 16,202,516,520.96/134,913.60
  6. Step 6: Final answer
    x = 120,095.50

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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.