Home / 191,196.36-286,521.84-140,880.78

Finding the Fourth Proportional to 191,196.36, 286,521.84 and 140,880.78

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Solution

The fourth proportional to 191,196.36, 286,521.84 and 140,880.78 is: 211,120.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,196.36 : 286,521.84 = 140,880.78 : x
  2. Step 2: Convert to fraction form
    191,196.36/286,521.84 = 140,880.78/x
  3. Step 3: Cross multiply
    191,196.36x = 286,521.84 × 140,880.78
  4. Step 4: Simplify right side
    191,196.36x = 40,365,420,306.24
  5. Step 5: Solve for x
    x = 40,365,420,306.24/191,196.36
  6. Step 6: Final answer
    x = 211,120.23

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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.