Home / 134,841.57-186,001.20-87,123.06

Finding the Fourth Proportional to 134,841.57, 186,001.20 and 87,123.06

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Solution

The fourth proportional to 134,841.57, 186,001.20 and 87,123.06 is: 120,178.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,841.57 : 186,001.20 = 87,123.06 : x
  2. Step 2: Convert to fraction form
    134,841.57/186,001.20 = 87,123.06/x
  3. Step 3: Cross multiply
    134,841.57x = 186,001.20 × 87,123.06
  4. Step 4: Simplify right side
    134,841.57x = 16,204,993,707.67
  5. Step 5: Solve for x
    x = 16,204,993,707.67/134,841.57
  6. Step 6: Final answer
    x = 120,178.03

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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.