Home / 120,588.68-166,422.90-70,286.60

Finding the Fourth Proportional to 120,588.68, 166,422.90 and 70,286.60

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Solution

The fourth proportional to 120,588.68, 166,422.90 and 70,286.60 is: 97,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,588.68 : 166,422.90 = 70,286.60 : x
  2. Step 2: Convert to fraction form
    120,588.68/166,422.90 = 70,286.60/x
  3. Step 3: Cross multiply
    120,588.68x = 166,422.90 × 70,286.60
  4. Step 4: Simplify right side
    120,588.68x = 11,697,299,803.14
  5. Step 5: Solve for x
    x = 11,697,299,803.14/120,588.68
  6. Step 6: Final answer
    x = 97,001.64

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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.