Home / 154,241.48-212,864.09-86,264.78

Finding the Fourth Proportional to 154,241.48, 212,864.09 and 86,264.78

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Solution

The fourth proportional to 154,241.48, 212,864.09 and 86,264.78 is: 119,051.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,241.48 : 212,864.09 = 86,264.78 : x
  2. Step 2: Convert to fraction form
    154,241.48/212,864.09 = 86,264.78/x
  3. Step 3: Cross multiply
    154,241.48x = 212,864.09 × 86,264.78
  4. Step 4: Simplify right side
    154,241.48x = 18,362,672,398.11
  5. Step 5: Solve for x
    x = 18,362,672,398.11/154,241.48
  6. Step 6: Final answer
    x = 119,051.46

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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.