Home / 134,919.81-186,189.60-74,490.57

Finding the Fourth Proportional to 134,919.81, 186,189.60 and 74,490.57

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Solution

The fourth proportional to 134,919.81, 186,189.60 and 74,490.57 is: 102,797.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,919.81 : 186,189.60 = 74,490.57 : x
  2. Step 2: Convert to fraction form
    134,919.81/186,189.60 = 74,490.57/x
  3. Step 3: Cross multiply
    134,919.81x = 186,189.60 × 74,490.57
  4. Step 4: Simplify right side
    134,919.81x = 13,869,369,432.07
  5. Step 5: Solve for x
    x = 13,869,369,432.07/134,919.81
  6. Step 6: Final answer
    x = 102,797.13

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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.