Home / 154,257.82-212,875.17-86,274.52

Finding the Fourth Proportional to 154,257.82, 212,875.17 and 86,274.52

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Solution

The fourth proportional to 154,257.82, 212,875.17 and 86,274.52 is: 119,058.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,257.82 : 212,875.17 = 86,274.52 : x
  2. Step 2: Convert to fraction form
    154,257.82/212,875.17 = 86,274.52/x
  3. Step 3: Cross multiply
    154,257.82x = 212,875.17 × 86,274.52
  4. Step 4: Simplify right side
    154,257.82x = 18,365,703,111.67
  5. Step 5: Solve for x
    x = 18,365,703,111.67/154,257.82
  6. Step 6: Final answer
    x = 119,058.49

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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.