Home / 145,234.27-200,423.36-81,572.06

Finding the Fourth Proportional to 145,234.27, 200,423.36 and 81,572.06

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Solution

The fourth proportional to 145,234.27, 200,423.36 and 81,572.06 is: 112,569.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,234.27 : 200,423.36 = 81,572.06 : x
  2. Step 2: Convert to fraction form
    145,234.27/200,423.36 = 81,572.06/x
  3. Step 3: Cross multiply
    145,234.27x = 200,423.36 × 81,572.06
  4. Step 4: Simplify right side
    145,234.27x = 16,348,947,052.31
  5. Step 5: Solve for x
    x = 16,348,947,052.31/145,234.27
  6. Step 6: Final answer
    x = 112,569.49

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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.