Home / 152,690.47-228,886.77-72,706.96

Finding the Fourth Proportional to 152,690.47, 228,886.77 and 72,706.96

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Solution

The fourth proportional to 152,690.47, 228,886.77 and 72,706.96 is: 108,989.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,690.47 : 228,886.77 = 72,706.96 : x
  2. Step 2: Convert to fraction form
    152,690.47/228,886.77 = 72,706.96/x
  3. Step 3: Cross multiply
    152,690.47x = 228,886.77 × 72,706.96
  4. Step 4: Simplify right side
    152,690.47x = 16,641,661,230.92
  5. Step 5: Solve for x
    x = 16,641,661,230.92/152,690.47
  6. Step 6: Final answer
    x = 108,989.52

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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.