Home / 124,731.49-187,215.53-77,202.82

Finding the Fourth Proportional to 124,731.49, 187,215.53 and 77,202.82

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Solution

The fourth proportional to 124,731.49, 187,215.53 and 77,202.82 is: 115,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,731.49 : 187,215.53 = 77,202.82 : x
  2. Step 2: Convert to fraction form
    124,731.49/187,215.53 = 77,202.82/x
  3. Step 3: Cross multiply
    124,731.49x = 187,215.53 × 77,202.82
  4. Step 4: Simplify right side
    124,731.49x = 14,453,565,638.21
  5. Step 5: Solve for x
    x = 14,453,565,638.21/124,731.49
  6. Step 6: Final answer
    x = 115,877.44

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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.