Home / 154,154.88-212,721.95-93,717.14

Finding the Fourth Proportional to 154,154.88, 212,721.95 and 93,717.14

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Solution

The fourth proportional to 154,154.88, 212,721.95 and 93,717.14 is: 129,322.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,154.88 : 212,721.95 = 93,717.14 : x
  2. Step 2: Convert to fraction form
    154,154.88/212,721.95 = 93,717.14/x
  3. Step 3: Cross multiply
    154,154.88x = 212,721.95 × 93,717.14
  4. Step 4: Simplify right side
    154,154.88x = 19,935,691,939.91
  5. Step 5: Solve for x
    x = 19,935,691,939.91/154,154.88
  6. Step 6: Final answer
    x = 129,322.48

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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.