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Finding the Fourth Proportional to 159,423.66, 220,014.61 and 87,803.66

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Solution

The fourth proportional to 159,423.66, 220,014.61 and 87,803.66 is: 121,174.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,423.66 : 220,014.61 = 87,803.66 : x
  2. Step 2: Convert to fraction form
    159,423.66/220,014.61 = 87,803.66/x
  3. Step 3: Cross multiply
    159,423.66x = 220,014.61 × 87,803.66
  4. Step 4: Simplify right side
    159,423.66x = 19,318,088,835.90
  5. Step 5: Solve for x
    x = 19,318,088,835.90/159,423.66
  6. Step 6: Final answer
    x = 121,174.54

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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.