Home / 219,950.63-329,931.68-70,190.72

Finding the Fourth Proportional to 219,950.63, 329,931.68 and 70,190.72

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Solution

The fourth proportional to 219,950.63, 329,931.68 and 70,190.72 is: 105,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,950.63 : 329,931.68 = 70,190.72 : x
  2. Step 2: Convert to fraction form
    219,950.63/329,931.68 = 70,190.72/x
  3. Step 3: Cross multiply
    219,950.63x = 329,931.68 × 70,190.72
  4. Step 4: Simplify right side
    219,950.63x = 23,158,141,169.70
  5. Step 5: Solve for x
    x = 23,158,141,169.70/219,950.63
  6. Step 6: Final answer
    x = 105,287.91

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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.