Home / 156,696.30-235,044.45-139,637.70

Finding the Fourth Proportional to 156,696.30, 235,044.45 and 139,637.70

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Solution

The fourth proportional to 156,696.30, 235,044.45 and 139,637.70 is: 209,456.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,696.30 : 235,044.45 = 139,637.70 : x
  2. Step 2: Convert to fraction form
    156,696.30/235,044.45 = 139,637.70/x
  3. Step 3: Cross multiply
    156,696.30x = 235,044.45 × 139,637.70
  4. Step 4: Simplify right side
    156,696.30x = 32,821,066,395.77
  5. Step 5: Solve for x
    x = 32,821,066,395.77/156,696.30
  6. Step 6: Final answer
    x = 209,456.55

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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.