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Finding the Fourth Proportional to 134,797.60, 186,019.40 and 74,368.73

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Solution

The fourth proportional to 134,797.60, 186,019.40 and 74,368.73 is: 102,628.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,797.60 : 186,019.40 = 74,368.73 : x
  2. Step 2: Convert to fraction form
    134,797.60/186,019.40 = 74,368.73/x
  3. Step 3: Cross multiply
    134,797.60x = 186,019.40 × 74,368.73
  4. Step 4: Simplify right side
    134,797.60x = 13,834,026,533.36
  5. Step 5: Solve for x
    x = 13,834,026,533.36/134,797.60
  6. Step 6: Final answer
    x = 102,628.14

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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.