Home / 153,932.40-212,426.55-93,486.96

Finding the Fourth Proportional to 153,932.40, 212,426.55 and 93,486.96

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Solution

The fourth proportional to 153,932.40, 212,426.55 and 93,486.96 is: 129,011.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,932.40 : 212,426.55 = 93,486.96 : x
  2. Step 2: Convert to fraction form
    153,932.40/212,426.55 = 93,486.96/x
  3. Step 3: Cross multiply
    153,932.40x = 212,426.55 × 93,486.96
  4. Step 4: Simplify right side
    153,932.40x = 19,859,112,382.79
  5. Step 5: Solve for x
    x = 19,859,112,382.79/153,932.40
  6. Step 6: Final answer
    x = 129,011.91

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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.