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Finding the Fourth Proportional to 139,172.46, 192,058.01 and 75,510.26

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Solution

The fourth proportional to 139,172.46, 192,058.01 and 75,510.26 is: 104,204.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,172.46 : 192,058.01 = 75,510.26 : x
  2. Step 2: Convert to fraction form
    139,172.46/192,058.01 = 75,510.26/x
  3. Step 3: Cross multiply
    139,172.46x = 192,058.01 × 75,510.26
  4. Step 4: Simplify right side
    139,172.46x = 14,502,348,932.34
  5. Step 5: Solve for x
    x = 14,502,348,932.34/139,172.46
  6. Step 6: Final answer
    x = 104,204.16

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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.