Home / 191,964.19-288,196.31-129,066.07

Finding the Fourth Proportional to 191,964.19, 288,196.31 and 129,066.07

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Solution

The fourth proportional to 191,964.19, 288,196.31 and 129,066.07 is: 193,767.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,964.19 : 288,196.31 = 129,066.07 : x
  2. Step 2: Convert to fraction form
    191,964.19/288,196.31 = 129,066.07/x
  3. Step 3: Cross multiply
    191,964.19x = 288,196.31 × 129,066.07
  4. Step 4: Simplify right side
    191,964.19x = 37,196,365,120.20
  5. Step 5: Solve for x
    x = 37,196,365,120.20/191,964.19
  6. Step 6: Final answer
    x = 193,767.21

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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.