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Finding the Fourth Proportional to 134,725.39, 185,921.04 and 77,368.48

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Solution

The fourth proportional to 134,725.39, 185,921.04 and 77,368.48 is: 106,768.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,725.39 : 185,921.04 = 77,368.48 : x
  2. Step 2: Convert to fraction form
    134,725.39/185,921.04 = 77,368.48/x
  3. Step 3: Cross multiply
    134,725.39x = 185,921.04 × 77,368.48
  4. Step 4: Simplify right side
    134,725.39x = 14,384,428,264.82
  5. Step 5: Solve for x
    x = 14,384,428,264.82/134,725.39
  6. Step 6: Final answer
    x = 106,768.50

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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.