Home / 134,801.12-186,027.44-74,374.40

Finding the Fourth Proportional to 134,801.12, 186,027.44 and 74,374.40

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Solution

The fourth proportional to 134,801.12, 186,027.44 and 74,374.40 is: 102,637.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,801.12 : 186,027.44 = 74,374.40 : x
  2. Step 2: Convert to fraction form
    134,801.12/186,027.44 = 74,374.40/x
  3. Step 3: Cross multiply
    134,801.12x = 186,027.44 × 74,374.40
  4. Step 4: Simplify right side
    134,801.12x = 13,835,679,233.54
  5. Step 5: Solve for x
    x = 13,835,679,233.54/134,801.12
  6. Step 6: Final answer
    x = 102,637.72

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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.