Home / 187,142.49-258,303.02-106,617.87

Finding the Fourth Proportional to 187,142.49, 258,303.02 and 106,617.87

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Solution

The fourth proportional to 187,142.49, 258,303.02 and 106,617.87 is: 147,159.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,142.49 : 258,303.02 = 106,617.87 : x
  2. Step 2: Convert to fraction form
    187,142.49/258,303.02 = 106,617.87/x
  3. Step 3: Cross multiply
    187,142.49x = 258,303.02 × 106,617.87
  4. Step 4: Simplify right side
    187,142.49x = 27,539,717,273.88
  5. Step 5: Solve for x
    x = 27,539,717,273.88/187,142.49
  6. Step 6: Final answer
    x = 147,159.08

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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.