Home / 134,731.81-185,921.27-74,302.87

Finding the Fourth Proportional to 134,731.81, 185,921.27 and 74,302.87

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Solution

The fourth proportional to 134,731.81, 185,921.27 and 74,302.87 is: 102,533.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,731.81 : 185,921.27 = 74,302.87 : x
  2. Step 2: Convert to fraction form
    134,731.81/185,921.27 = 74,302.87/x
  3. Step 3: Cross multiply
    134,731.81x = 185,921.27 × 74,302.87
  4. Step 4: Simplify right side
    134,731.81x = 13,814,484,163.92
  5. Step 5: Solve for x
    x = 13,814,484,163.92/134,731.81
  6. Step 6: Final answer
    x = 102,533.21

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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.