Home / 113,126.36-168,690.28-112,113.05

Finding the Fourth Proportional to 113,126.36, 168,690.28 and 112,113.05

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Solution

The fourth proportional to 113,126.36, 168,690.28 and 112,113.05 is: 167,179.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,126.36 : 168,690.28 = 112,113.05 : x
  2. Step 2: Convert to fraction form
    113,126.36/168,690.28 = 112,113.05/x
  3. Step 3: Cross multiply
    113,126.36x = 168,690.28 × 112,113.05
  4. Step 4: Simplify right side
    113,126.36x = 18,912,381,937.60
  5. Step 5: Solve for x
    x = 18,912,381,937.60/113,126.36
  6. Step 6: Final answer
    x = 167,179.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.