Home / 121,968.40-182,898.84-38,870.80

Finding the Fourth Proportional to 121,968.40, 182,898.84 and 38,870.80

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Solution

The fourth proportional to 121,968.40, 182,898.84 and 38,870.80 is: 58,289.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,968.40 : 182,898.84 = 38,870.80 : x
  2. Step 2: Convert to fraction form
    121,968.40/182,898.84 = 38,870.80/x
  3. Step 3: Cross multiply
    121,968.40x = 182,898.84 × 38,870.80
  4. Step 4: Simplify right side
    121,968.40x = 7,109,424,229.87
  5. Step 5: Solve for x
    x = 7,109,424,229.87/121,968.40
  6. Step 6: Final answer
    x = 58,289.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.