Home / 144,853.20-217,020.60-89,384.40

Finding the Fourth Proportional to 144,853.20, 217,020.60 and 89,384.40

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Solution

The fourth proportional to 144,853.20, 217,020.60 and 89,384.40 is: 133,916.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,853.20 : 217,020.60 = 89,384.40 : x
  2. Step 2: Convert to fraction form
    144,853.20/217,020.60 = 89,384.40/x
  3. Step 3: Cross multiply
    144,853.20x = 217,020.60 × 89,384.40
  4. Step 4: Simplify right side
    144,853.20x = 19,398,256,118.64
  5. Step 5: Solve for x
    x = 19,398,256,118.64/144,853.20
  6. Step 6: Final answer
    x = 133,916.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.