Home / 207,690.24-286,612.16-112,196.64

Finding the Fourth Proportional to 207,690.24, 286,612.16 and 112,196.64

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Solution

The fourth proportional to 207,690.24, 286,612.16 and 112,196.64 is: 154,831.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,690.24 : 286,612.16 = 112,196.64 : x
  2. Step 2: Convert to fraction form
    207,690.24/286,612.16 = 112,196.64/x
  3. Step 3: Cross multiply
    207,690.24x = 286,612.16 × 112,196.64
  4. Step 4: Simplify right side
    207,690.24x = 32,156,921,335.14
  5. Step 5: Solve for x
    x = 32,156,921,335.14/207,690.24
  6. Step 6: Final answer
    x = 154,831.16

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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.