Home / 159,533.25-220,157.33-87,915.84

Finding the Fourth Proportional to 159,533.25, 220,157.33 and 87,915.84

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Solution

The fourth proportional to 159,533.25, 220,157.33 and 87,915.84 is: 121,324.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,533.25 : 220,157.33 = 87,915.84 : x
  2. Step 2: Convert to fraction form
    159,533.25/220,157.33 = 87,915.84/x
  3. Step 3: Cross multiply
    159,533.25x = 220,157.33 × 87,915.84
  4. Step 4: Simplify right side
    159,533.25x = 19,355,316,599.11
  5. Step 5: Solve for x
    x = 19,355,316,599.11/159,533.25
  6. Step 6: Final answer
    x = 121,324.66

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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.