Home / 140,368.20-193,707.72-76,706.40

Finding the Fourth Proportional to 140,368.20, 193,707.72 and 76,706.40

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Solution

The fourth proportional to 140,368.20, 193,707.72 and 76,706.40 is: 105,854.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,368.20 : 193,707.72 = 76,706.40 : x
  2. Step 2: Convert to fraction form
    140,368.20/193,707.72 = 76,706.40/x
  3. Step 3: Cross multiply
    140,368.20x = 193,707.72 × 76,706.40
  4. Step 4: Simplify right side
    140,368.20x = 14,858,621,853.41
  5. Step 5: Solve for x
    x = 14,858,621,853.41/140,368.20
  6. Step 6: Final answer
    x = 105,854.62

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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.