Home / 139,877.06-193,030.36-76,214.86

Finding the Fourth Proportional to 139,877.06, 193,030.36 and 76,214.86

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Solution

The fourth proportional to 139,877.06, 193,030.36 and 76,214.86 is: 105,176.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,877.06 : 193,030.36 = 76,214.86 : x
  2. Step 2: Convert to fraction form
    139,877.06/193,030.36 = 76,214.86/x
  3. Step 3: Cross multiply
    139,877.06x = 193,030.36 × 76,214.86
  4. Step 4: Simplify right side
    139,877.06x = 14,711,781,190.04
  5. Step 5: Solve for x
    x = 14,711,781,190.04/139,877.06
  6. Step 6: Final answer
    x = 105,176.52

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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.