Home / 134,939.19-186,218.40-87,275.58

Finding the Fourth Proportional to 134,939.19, 186,218.40 and 87,275.58

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Solution

The fourth proportional to 134,939.19, 186,218.40 and 87,275.58 is: 120,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,939.19 : 186,218.40 = 87,275.58 : x
  2. Step 2: Convert to fraction form
    134,939.19/186,218.40 = 87,275.58/x
  3. Step 3: Cross multiply
    134,939.19x = 186,218.40 × 87,275.58
  4. Step 4: Simplify right side
    134,939.19x = 16,252,318,866.67
  5. Step 5: Solve for x
    x = 16,252,318,866.67/134,939.19
  6. Step 6: Final answer
    x = 120,441.80

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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.