Home / 170,685.36-235,508.10-99,023.88

Finding the Fourth Proportional to 170,685.36, 235,508.10 and 99,023.88

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Solution

The fourth proportional to 170,685.36, 235,508.10 and 99,023.88 is: 136,631.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,685.36 : 235,508.10 = 99,023.88 : x
  2. Step 2: Convert to fraction form
    170,685.36/235,508.10 = 99,023.88/x
  3. Step 3: Cross multiply
    170,685.36x = 235,508.10 × 99,023.88
  4. Step 4: Simplify right side
    170,685.36x = 23,320,925,833.43
  5. Step 5: Solve for x
    x = 23,320,925,833.43/170,685.36
  6. Step 6: Final answer
    x = 136,631.08

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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.