Home / 143,332.07-197,805.27-79,668.50

Finding the Fourth Proportional to 143,332.07, 197,805.27 and 79,668.50

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Solution

The fourth proportional to 143,332.07, 197,805.27 and 79,668.50 is: 109,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,332.07 : 197,805.27 = 79,668.50 : x
  2. Step 2: Convert to fraction form
    143,332.07/197,805.27 = 79,668.50/x
  3. Step 3: Cross multiply
    143,332.07x = 197,805.27 × 79,668.50
  4. Step 4: Simplify right side
    143,332.07x = 15,758,849,153.00
  5. Step 5: Solve for x
    x = 15,758,849,153.00/143,332.07
  6. Step 6: Final answer
    x = 109,946.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.