Home / 86,886.10-130,523.55-83,343.70

Finding the Fourth Proportional to 86,886.10, 130,523.55 and 83,343.70

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Solution

The fourth proportional to 86,886.10, 130,523.55 and 83,343.70 is: 125,202.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,886.10 : 130,523.55 = 83,343.70 : x
  2. Step 2: Convert to fraction form
    86,886.10/130,523.55 = 83,343.70/x
  3. Step 3: Cross multiply
    86,886.10x = 130,523.55 × 83,343.70
  4. Step 4: Simplify right side
    86,886.10x = 10,878,315,594.14
  5. Step 5: Solve for x
    x = 10,878,315,594.14/86,886.10
  6. Step 6: Final answer
    x = 125,202.02

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1.5x scale

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.