Home / 152,289.76-228,516.72-72,309.28

Finding the Fourth Proportional to 152,289.76, 228,516.72 and 72,309.28

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Solution

The fourth proportional to 152,289.76, 228,516.72 and 72,309.28 is: 108,502.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,289.76 : 228,516.72 = 72,309.28 : x
  2. Step 2: Convert to fraction form
    152,289.76/228,516.72 = 72,309.28/x
  3. Step 3: Cross multiply
    152,289.76x = 228,516.72 × 72,309.28
  4. Step 4: Simplify right side
    152,289.76x = 16,523,879,491.16
  5. Step 5: Solve for x
    x = 16,523,879,491.16/152,289.76
  6. Step 6: Final answer
    x = 108,502.89

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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.