Home / 187,008.10-280,345.29-81,743.74

Finding the Fourth Proportional to 187,008.10, 280,345.29 and 81,743.74

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Solution

The fourth proportional to 187,008.10, 280,345.29 and 81,743.74 is: 122,542.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,008.10 : 280,345.29 = 81,743.74 : x
  2. Step 2: Convert to fraction form
    187,008.10/280,345.29 = 81,743.74/x
  3. Step 3: Cross multiply
    187,008.10x = 280,345.29 × 81,743.74
  4. Step 4: Simplify right side
    187,008.10x = 22,916,472,495.98
  5. Step 5: Solve for x
    x = 22,916,472,495.98/187,008.10
  6. Step 6: Final answer
    x = 122,542.67

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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.