Home / 152,309.76-228,476.16-47,139.36

Finding the Fourth Proportional to 152,309.76, 228,476.16 and 47,139.36

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Solution

The fourth proportional to 152,309.76, 228,476.16 and 47,139.36 is: 70,712.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,309.76 : 228,476.16 = 47,139.36 : x
  2. Step 2: Convert to fraction form
    152,309.76/228,476.16 = 47,139.36/x
  3. Step 3: Cross multiply
    152,309.76x = 228,476.16 × 47,139.36
  4. Step 4: Simplify right side
    152,309.76x = 10,770,219,957.66
  5. Step 5: Solve for x
    x = 10,770,219,957.66/152,309.76
  6. Step 6: Final answer
    x = 70,712.61

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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.