Home / 135,470.50-202,381.83-87,696.40

Finding the Fourth Proportional to 135,470.50, 202,381.83 and 87,696.40

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Solution

The fourth proportional to 135,470.50, 202,381.83 and 87,696.40 is: 131,011.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,470.50 : 202,381.83 = 87,696.40 : x
  2. Step 2: Convert to fraction form
    135,470.50/202,381.83 = 87,696.40/x
  3. Step 3: Cross multiply
    135,470.50x = 202,381.83 × 87,696.40
  4. Step 4: Simplify right side
    135,470.50x = 17,748,157,916.41
  5. Step 5: Solve for x
    x = 17,748,157,916.41/135,470.50
  6. Step 6: Final answer
    x = 131,011.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.