Home / 187,626.16-258,921.48-102,743.20

Finding the Fourth Proportional to 187,626.16, 258,921.48 and 102,743.20

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Solution

The fourth proportional to 187,626.16, 258,921.48 and 102,743.20 is: 141,784.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,626.16 : 258,921.48 = 102,743.20 : x
  2. Step 2: Convert to fraction form
    187,626.16/258,921.48 = 102,743.20/x
  3. Step 3: Cross multiply
    187,626.16x = 258,921.48 × 102,743.20
  4. Step 4: Simplify right side
    187,626.16x = 26,602,421,403.94
  5. Step 5: Solve for x
    x = 26,602,421,403.94/187,626.16
  6. Step 6: Final answer
    x = 141,784.18

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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.