Home / 187,312.94-258,319.37-122,758.66

Finding the Fourth Proportional to 187,312.94, 258,319.37 and 122,758.66

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Solution

The fourth proportional to 187,312.94, 258,319.37 and 122,758.66 is: 169,293.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,312.94 : 258,319.37 = 122,758.66 : x
  2. Step 2: Convert to fraction form
    187,312.94/258,319.37 = 122,758.66/x
  3. Step 3: Cross multiply
    187,312.94x = 258,319.37 × 122,758.66
  4. Step 4: Simplify right side
    187,312.94x = 31,710,938,571.74
  5. Step 5: Solve for x
    x = 31,710,938,571.74/187,312.94
  6. Step 6: Final answer
    x = 169,293.91

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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.