Home / 139,886.07-193,042.49-76,223.72

Finding the Fourth Proportional to 139,886.07, 193,042.49 and 76,223.72

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Solution

The fourth proportional to 139,886.07, 193,042.49 and 76,223.72 is: 105,188.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,886.07 : 193,042.49 = 76,223.72 : x
  2. Step 2: Convert to fraction form
    139,886.07/193,042.49 = 76,223.72/x
  3. Step 3: Cross multiply
    139,886.07x = 193,042.49 × 76,223.72
  4. Step 4: Simplify right side
    139,886.07x = 14,714,415,359.53
  5. Step 5: Solve for x
    x = 14,714,415,359.53/139,886.07
  6. Step 6: Final answer
    x = 105,188.57

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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.