Home / 140,054.94-193,280.31-76,395.42

Finding the Fourth Proportional to 140,054.94, 193,280.31 and 76,395.42

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Solution

The fourth proportional to 140,054.94, 193,280.31 and 76,395.42 is: 105,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,054.94 : 193,280.31 = 76,395.42 : x
  2. Step 2: Convert to fraction form
    140,054.94/193,280.31 = 76,395.42/x
  3. Step 3: Cross multiply
    140,054.94x = 193,280.31 × 76,395.42
  4. Step 4: Simplify right side
    140,054.94x = 14,765,730,460.18
  5. Step 5: Solve for x
    x = 14,765,730,460.18/140,054.94
  6. Step 6: Final answer
    x = 105,428.13

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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.