Home / 141,678.16-212,648.52-71,606.80

Finding the Fourth Proportional to 141,678.16, 212,648.52 and 71,606.80

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Solution

The fourth proportional to 141,678.16, 212,648.52 and 71,606.80 is: 107,476.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,678.16 : 212,648.52 = 71,606.80 : x
  2. Step 2: Convert to fraction form
    141,678.16/212,648.52 = 71,606.80/x
  3. Step 3: Cross multiply
    141,678.16x = 212,648.52 × 71,606.80
  4. Step 4: Simplify right side
    141,678.16x = 15,227,080,041.94
  5. Step 5: Solve for x
    x = 15,227,080,041.94/141,678.16
  6. Step 6: Final answer
    x = 107,476.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.