Home / 139,877.08-193,027.94-76,215.40

Finding the Fourth Proportional to 139,877.08, 193,027.94 and 76,215.40

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Solution

The fourth proportional to 139,877.08, 193,027.94 and 76,215.40 is: 105,175.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,877.08 : 193,027.94 = 76,215.40 : x
  2. Step 2: Convert to fraction form
    139,877.08/193,027.94 = 76,215.40/x
  3. Step 3: Cross multiply
    139,877.08x = 193,027.94 × 76,215.40
  4. Step 4: Simplify right side
    139,877.08x = 14,711,701,658.28
  5. Step 5: Solve for x
    x = 14,711,701,658.28/139,877.08
  6. Step 6: Final answer
    x = 105,175.93

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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.