Home / 90,001.24-135,001.86-70,250.20

Finding the Fourth Proportional to 90,001.24, 135,001.86 and 70,250.20

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Solution

The fourth proportional to 90,001.24, 135,001.86 and 70,250.20 is: 105,375.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,001.24 : 135,001.86 = 70,250.20 : x
  2. Step 2: Convert to fraction form
    90,001.24/135,001.86 = 70,250.20/x
  3. Step 3: Cross multiply
    90,001.24x = 135,001.86 × 70,250.20
  4. Step 4: Simplify right side
    90,001.24x = 9,483,907,665.37
  5. Step 5: Solve for x
    x = 9,483,907,665.37/90,001.24
  6. Step 6: Final answer
    x = 105,375.30

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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.