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Finding the Fourth Proportional to 159,218.55, 219,722.00 and 87,603.03

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Solution

The fourth proportional to 159,218.55, 219,722.00 and 87,603.03 is: 120,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,218.55 : 219,722.00 = 87,603.03 : x
  2. Step 2: Convert to fraction form
    159,218.55/219,722.00 = 87,603.03/x
  3. Step 3: Cross multiply
    159,218.55x = 219,722.00 × 87,603.03
  4. Step 4: Simplify right side
    159,218.55x = 19,248,312,519.64
  5. Step 5: Solve for x
    x = 19,248,312,519.64/159,218.55
  6. Step 6: Final answer
    x = 120,892.40

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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.