Home / 136,098.81-187,807.73-75,668.36

Finding the Fourth Proportional to 136,098.81, 187,807.73 and 75,668.36

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Solution

The fourth proportional to 136,098.81, 187,807.73 and 75,668.36 is: 104,417.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,098.81 : 187,807.73 = 75,668.36 : x
  2. Step 2: Convert to fraction form
    136,098.81/187,807.73 = 75,668.36/x
  3. Step 3: Cross multiply
    136,098.81x = 187,807.73 × 75,668.36
  4. Step 4: Simplify right side
    136,098.81x = 14,211,101,607.04
  5. Step 5: Solve for x
    x = 14,211,101,607.04/136,098.81
  6. Step 6: Final answer
    x = 104,417.53

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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.