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Finding the Fourth Proportional to 159,603.62, 220,250.30 and 87,007.30

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Solution

The fourth proportional to 159,603.62, 220,250.30 and 87,007.30 is: 120,068.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,603.62 : 220,250.30 = 87,007.30 : x
  2. Step 2: Convert to fraction form
    159,603.62/220,250.30 = 87,007.30/x
  3. Step 3: Cross multiply
    159,603.62x = 220,250.30 × 87,007.30
  4. Step 4: Simplify right side
    159,603.62x = 19,163,383,927.19
  5. Step 5: Solve for x
    x = 19,163,383,927.19/159,603.62
  6. Step 6: Final answer
    x = 120,068.60

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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.