Home / 139,884.22-193,036.53-76,218.22

Finding the Fourth Proportional to 139,884.22, 193,036.53 and 76,218.22

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Solution

The fourth proportional to 139,884.22, 193,036.53 and 76,218.22 is: 105,179.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,884.22 : 193,036.53 = 76,218.22 : x
  2. Step 2: Convert to fraction form
    139,884.22/193,036.53 = 76,218.22/x
  3. Step 3: Cross multiply
    139,884.22x = 193,036.53 × 76,218.22
  4. Step 4: Simplify right side
    139,884.22x = 14,712,900,711.58
  5. Step 5: Solve for x
    x = 14,712,900,711.58/139,884.22
  6. Step 6: Final answer
    x = 105,179.13

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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.