Home / 139,939.02-193,110.12-76,275.42

Finding the Fourth Proportional to 139,939.02, 193,110.12 and 76,275.42

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Solution

The fourth proportional to 139,939.02, 193,110.12 and 76,275.42 is: 105,256.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,939.02 : 193,110.12 = 76,275.42 : x
  2. Step 2: Convert to fraction form
    139,939.02/193,110.12 = 76,275.42/x
  3. Step 3: Cross multiply
    139,939.02x = 193,110.12 × 76,275.42
  4. Step 4: Simplify right side
    139,939.02x = 14,729,555,509.25
  5. Step 5: Solve for x
    x = 14,729,555,509.25/139,939.02
  6. Step 6: Final answer
    x = 105,256.96

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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.