Home / 134,911.56-186,184.18-74,490.78

Finding the Fourth Proportional to 134,911.56, 186,184.18 and 74,490.78

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Solution

The fourth proportional to 134,911.56, 186,184.18 and 74,490.78 is: 102,800.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,911.56 : 186,184.18 = 74,490.78 : x
  2. Step 2: Convert to fraction form
    134,911.56/186,184.18 = 74,490.78/x
  3. Step 3: Cross multiply
    134,911.56x = 186,184.18 × 74,490.78
  4. Step 4: Simplify right side
    134,911.56x = 13,869,003,674.71
  5. Step 5: Solve for x
    x = 13,869,003,674.71/134,911.56
  6. Step 6: Final answer
    x = 102,800.71

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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.