Home / 192,787.90-265,686.69-138,981.22

Finding the Fourth Proportional to 192,787.90, 265,686.69 and 138,981.22

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Solution

The fourth proportional to 192,787.90, 265,686.69 and 138,981.22 is: 191,534.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,787.90 : 265,686.69 = 138,981.22 : x
  2. Step 2: Convert to fraction form
    192,787.90/265,686.69 = 138,981.22/x
  3. Step 3: Cross multiply
    192,787.90x = 265,686.69 × 138,981.22
  4. Step 4: Simplify right side
    192,787.90x = 36,925,460,313.96
  5. Step 5: Solve for x
    x = 36,925,460,313.96/192,787.90
  6. Step 6: Final answer
    x = 191,534.12

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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.