Home / 187,898.72-259,272.02-107,309.08

Finding the Fourth Proportional to 187,898.72, 259,272.02 and 107,309.08

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Solution

The fourth proportional to 187,898.72, 259,272.02 and 107,309.08 is: 148,070.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,898.72 : 259,272.02 = 107,309.08 : x
  2. Step 2: Convert to fraction form
    187,898.72/259,272.02 = 107,309.08/x
  3. Step 3: Cross multiply
    187,898.72x = 259,272.02 × 107,309.08
  4. Step 4: Simplify right side
    187,898.72x = 27,822,241,935.94
  5. Step 5: Solve for x
    x = 27,822,241,935.94/187,898.72
  6. Step 6: Final answer
    x = 148,070.42

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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.