Home / 120,837.17-166,717.68-69,831.32

Finding the Fourth Proportional to 120,837.17, 166,717.68 and 69,831.32

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Solution

The fourth proportional to 120,837.17, 166,717.68 and 69,831.32 is: 96,345.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,837.17 : 166,717.68 = 69,831.32 : x
  2. Step 2: Convert to fraction form
    120,837.17/166,717.68 = 69,831.32/x
  3. Step 3: Cross multiply
    120,837.17x = 166,717.68 × 69,831.32
  4. Step 4: Simplify right side
    120,837.17x = 11,642,115,661.74
  5. Step 5: Solve for x
    x = 11,642,115,661.74/120,837.17
  6. Step 6: Final answer
    x = 96,345.48

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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.