Home / 134,869.34-186,120.36-74,440.10

Finding the Fourth Proportional to 134,869.34, 186,120.36 and 74,440.10

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Solution

The fourth proportional to 134,869.34, 186,120.36 and 74,440.10 is: 102,727.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,869.34 : 186,120.36 = 74,440.10 : x
  2. Step 2: Convert to fraction form
    134,869.34/186,120.36 = 74,440.10/x
  3. Step 3: Cross multiply
    134,869.34x = 186,120.36 × 74,440.10
  4. Step 4: Simplify right side
    134,869.34x = 13,854,817,279.83
  5. Step 5: Solve for x
    x = 13,854,817,279.83/134,869.34
  6. Step 6: Final answer
    x = 102,727.71

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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.