Home / 140,036.96-193,252.56-76,374.56

Finding the Fourth Proportional to 140,036.96, 193,252.56 and 76,374.56

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Solution

The fourth proportional to 140,036.96, 193,252.56 and 76,374.56 is: 105,397.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,036.96 : 193,252.56 = 76,374.56 : x
  2. Step 2: Convert to fraction form
    140,036.96/193,252.56 = 76,374.56/x
  3. Step 3: Cross multiply
    140,036.96x = 193,252.56 × 76,374.56
  4. Step 4: Simplify right side
    140,036.96x = 14,759,579,238.87
  5. Step 5: Solve for x
    x = 14,759,579,238.87/140,036.96
  6. Step 6: Final answer
    x = 105,397.74

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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.