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Finding the Fourth Proportional to 159,533.75, 220,158.02 and 87,916.34

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Solution

The fourth proportional to 159,533.75, 220,158.02 and 87,916.34 is: 121,325.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,533.75 : 220,158.02 = 87,916.34 : x
  2. Step 2: Convert to fraction form
    159,533.75/220,158.02 = 87,916.34/x
  3. Step 3: Cross multiply
    159,533.75x = 220,158.02 × 87,916.34
  4. Step 4: Simplify right side
    159,533.75x = 19,355,487,340.05
  5. Step 5: Solve for x
    x = 19,355,487,340.05/159,533.75
  6. Step 6: Final answer
    x = 121,325.35

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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.