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Finding the Fourth Proportional to 152,071.70, 228,107.55 and 89,863.70

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Solution

The fourth proportional to 152,071.70, 228,107.55 and 89,863.70 is: 134,795.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,071.70 : 228,107.55 = 89,863.70 : x
  2. Step 2: Convert to fraction form
    152,071.70/228,107.55 = 89,863.70/x
  3. Step 3: Cross multiply
    152,071.70x = 228,107.55 × 89,863.70
  4. Step 4: Simplify right side
    152,071.70x = 20,498,588,440.94
  5. Step 5: Solve for x
    x = 20,498,588,440.94/152,071.70
  6. Step 6: Final answer
    x = 134,795.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.