Home / 187,387.31-258,719.23-110,931.01

Finding the Fourth Proportional to 187,387.31, 258,719.23 and 110,931.01

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Solution

The fourth proportional to 187,387.31, 258,719.23 and 110,931.01 is: 153,158.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,387.31 : 258,719.23 = 110,931.01 : x
  2. Step 2: Convert to fraction form
    187,387.31/258,719.23 = 110,931.01/x
  3. Step 3: Cross multiply
    187,387.31x = 258,719.23 × 110,931.01
  4. Step 4: Simplify right side
    187,387.31x = 28,699,984,982.19
  5. Step 5: Solve for x
    x = 28,699,984,982.19/187,387.31
  6. Step 6: Final answer
    x = 153,158.63

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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.