Home / 102,566.76-153,344.37-86,946.11

Finding the Fourth Proportional to 102,566.76, 153,344.37 and 86,946.11

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Solution

The fourth proportional to 102,566.76, 153,344.37 and 86,946.11 is: 129,990.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,566.76 : 153,344.37 = 86,946.11 : x
  2. Step 2: Convert to fraction form
    102,566.76/153,344.37 = 86,946.11/x
  3. Step 3: Cross multiply
    102,566.76x = 153,344.37 × 86,946.11
  4. Step 4: Simplify right side
    102,566.76x = 13,332,696,596.27
  5. Step 5: Solve for x
    x = 13,332,696,596.27/102,566.76
  6. Step 6: Final answer
    x = 129,990.43

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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.