Home / 136,136.52-187,875.45-75,708.36

Finding the Fourth Proportional to 136,136.52, 187,875.45 and 75,708.36

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Solution

The fourth proportional to 136,136.52, 187,875.45 and 75,708.36 is: 104,481.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,136.52 : 187,875.45 = 75,708.36 : x
  2. Step 2: Convert to fraction form
    136,136.52/187,875.45 = 75,708.36/x
  3. Step 3: Cross multiply
    136,136.52x = 187,875.45 × 75,708.36
  4. Step 4: Simplify right side
    136,136.52x = 14,223,742,203.76
  5. Step 5: Solve for x
    x = 14,223,742,203.76/136,136.52
  6. Step 6: Final answer
    x = 104,481.46

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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.