Home / 113,991.04-157,326.77-77,180.56

Finding the Fourth Proportional to 113,991.04, 157,326.77 and 77,180.56

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Solution

The fourth proportional to 113,991.04, 157,326.77 and 77,180.56 is: 106,522.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,991.04 : 157,326.77 = 77,180.56 : x
  2. Step 2: Convert to fraction form
    113,991.04/157,326.77 = 77,180.56/x
  3. Step 3: Cross multiply
    113,991.04x = 157,326.77 × 77,180.56
  4. Step 4: Simplify right side
    113,991.04x = 12,142,568,211.59
  5. Step 5: Solve for x
    x = 12,142,568,211.59/113,991.04
  6. Step 6: Final answer
    x = 106,522.13

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1.5x scale

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.