Home / 113,870.22-157,128.97-66,114.24

Finding the Fourth Proportional to 113,870.22, 157,128.97 and 66,114.24

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Solution

The fourth proportional to 113,870.22, 157,128.97 and 66,114.24 is: 91,230.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,870.22 : 157,128.97 = 66,114.24 : x
  2. Step 2: Convert to fraction form
    113,870.22/157,128.97 = 66,114.24/x
  3. Step 3: Cross multiply
    113,870.22x = 157,128.97 × 66,114.24
  4. Step 4: Simplify right side
    113,870.22x = 10,388,462,433.53
  5. Step 5: Solve for x
    x = 10,388,462,433.53/113,870.22
  6. Step 6: Final answer
    x = 91,230.72

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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.