Home / 140,077.06-193,315.47-79,653.32

Finding the Fourth Proportional to 140,077.06, 193,315.47 and 79,653.32

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Solution

The fourth proportional to 140,077.06, 193,315.47 and 79,653.32 is: 109,926.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,077.06 : 193,315.47 = 79,653.32 : x
  2. Step 2: Convert to fraction form
    140,077.06/193,315.47 = 79,653.32/x
  3. Step 3: Cross multiply
    140,077.06x = 193,315.47 × 79,653.32
  4. Step 4: Simplify right side
    140,077.06x = 15,398,218,992.86
  5. Step 5: Solve for x
    x = 15,398,218,992.86/140,077.06
  6. Step 6: Final answer
    x = 109,926.77

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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.