Home / 106,578.48-147,089.08-91,521

Finding the Fourth Proportional to 106,578.48, 147,089.08 and 91,521

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Solution

The fourth proportional to 106,578.48, 147,089.08 and 91,521 is: 126,308.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,578.48 : 147,089.08 = 91,521 : x
  2. Step 2: Convert to fraction form
    106,578.48/147,089.08 = 91,521/x
  3. Step 3: Cross multiply
    106,578.48x = 147,089.08 × 91,521
  4. Step 4: Simplify right side
    106,578.48x = 13,461,739,690.68
  5. Step 5: Solve for x
    x = 13,461,739,690.68/106,578.48
  6. Step 6: Final answer
    x = 126,308.23

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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.