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Finding the Fourth Proportional to 134,762.38, 185,963.63 and 74,332.87

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Solution

The fourth proportional to 134,762.38, 185,963.63 and 74,332.87 is: 102,574.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,762.38 : 185,963.63 = 74,332.87 : x
  2. Step 2: Convert to fraction form
    134,762.38/185,963.63 = 74,332.87/x
  3. Step 3: Cross multiply
    134,762.38x = 185,963.63 × 74,332.87
  4. Step 4: Simplify right side
    134,762.38x = 13,823,209,496.94
  5. Step 5: Solve for x
    x = 13,823,209,496.94/134,762.38
  6. Step 6: Final answer
    x = 102,574.69

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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.