Home / 140,148.59-193,402.35-76,486.84

Finding the Fourth Proportional to 140,148.59, 193,402.35 and 76,486.84

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Solution

The fourth proportional to 140,148.59, 193,402.35 and 76,486.84 is: 105,550.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,148.59 : 193,402.35 = 76,486.84 : x
  2. Step 2: Convert to fraction form
    140,148.59/193,402.35 = 76,486.84/x
  3. Step 3: Cross multiply
    140,148.59x = 193,402.35 × 76,486.84
  4. Step 4: Simplify right side
    140,148.59x = 14,792,734,600.07
  5. Step 5: Solve for x
    x = 14,792,734,600.07/140,148.59
  6. Step 6: Final answer
    x = 105,550.36

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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.