Home / 159,533.07-220,157.12-87,915.66

Finding the Fourth Proportional to 159,533.07, 220,157.12 and 87,915.66

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Solution

The fourth proportional to 159,533.07, 220,157.12 and 87,915.66 is: 121,324.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,533.07 : 220,157.12 = 87,915.66 : x
  2. Step 2: Convert to fraction form
    159,533.07/220,157.12 = 87,915.66/x
  3. Step 3: Cross multiply
    159,533.07x = 220,157.12 × 87,915.66
  4. Step 4: Simplify right side
    159,533.07x = 19,355,258,508.50
  5. Step 5: Solve for x
    x = 19,355,258,508.50/159,533.07
  6. Step 6: Final answer
    x = 121,324.43

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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.