Home / 139,883.22-193,035.15-76,217.22

Finding the Fourth Proportional to 139,883.22, 193,035.15 and 76,217.22

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Solution

The fourth proportional to 139,883.22, 193,035.15 and 76,217.22 is: 105,177.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,883.22 : 193,035.15 = 76,217.22 : x
  2. Step 2: Convert to fraction form
    139,883.22/193,035.15 = 76,217.22/x
  3. Step 3: Cross multiply
    139,883.22x = 193,035.15 × 76,217.22
  4. Step 4: Simplify right side
    139,883.22x = 14,712,602,495.28
  5. Step 5: Solve for x
    x = 14,712,602,495.28/139,883.22
  6. Step 6: Final answer
    x = 105,177.75

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1.5x scale

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.