Home / 136,003.47-187,681.03-75,572.56

Finding the Fourth Proportional to 136,003.47, 187,681.03 and 75,572.56

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Solution

The fourth proportional to 136,003.47, 187,681.03 and 75,572.56 is: 104,288.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,003.47 : 187,681.03 = 75,572.56 : x
  2. Step 2: Convert to fraction form
    136,003.47/187,681.03 = 75,572.56/x
  3. Step 3: Cross multiply
    136,003.47x = 187,681.03 × 75,572.56
  4. Step 4: Simplify right side
    136,003.47x = 14,183,535,900.54
  5. Step 5: Solve for x
    x = 14,183,535,900.54/136,003.47
  6. Step 6: Final answer
    x = 104,288.04

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1.5x scale

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.