Home / 207,320.34-286,104.10-115,440.92

Finding the Fourth Proportional to 207,320.34, 286,104.10 and 115,440.92

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Solution

The fourth proportional to 207,320.34, 286,104.10 and 115,440.92 is: 159,309.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,320.34 : 286,104.10 = 115,440.92 : x
  2. Step 2: Convert to fraction form
    207,320.34/286,104.10 = 115,440.92/x
  3. Step 3: Cross multiply
    207,320.34x = 286,104.10 × 115,440.92
  4. Step 4: Simplify right side
    207,320.34x = 33,028,119,089.25
  5. Step 5: Solve for x
    x = 33,028,119,089.25/207,320.34
  6. Step 6: Final answer
    x = 159,309.59

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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.