Home / 187,405.48-258,617.40-102,521.52

Finding the Fourth Proportional to 187,405.48, 258,617.40 and 102,521.52

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Solution

The fourth proportional to 187,405.48, 258,617.40 and 102,521.52 is: 141,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,405.48 : 258,617.40 = 102,521.52 : x
  2. Step 2: Convert to fraction form
    187,405.48/258,617.40 = 102,521.52/x
  3. Step 3: Cross multiply
    187,405.48x = 258,617.40 × 102,521.52
  4. Step 4: Simplify right side
    187,405.48x = 26,513,848,946.45
  5. Step 5: Solve for x
    x = 26,513,848,946.45/187,405.48
  6. Step 6: Final answer
    x = 141,478.51

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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.