Home / 112,942.08-169,378.56-42,831.36

Finding the Fourth Proportional to 112,942.08, 169,378.56 and 42,831.36

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Solution

The fourth proportional to 112,942.08, 169,378.56 and 42,831.36 is: 64,233.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,942.08 : 169,378.56 = 42,831.36 : x
  2. Step 2: Convert to fraction form
    112,942.08/169,378.56 = 42,831.36/x
  3. Step 3: Cross multiply
    112,942.08x = 169,378.56 × 42,831.36
  4. Step 4: Simplify right side
    112,942.08x = 7,254,714,079.64
  5. Step 5: Solve for x
    x = 7,254,714,079.64/112,942.08
  6. Step 6: Final answer
    x = 64,233.93

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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.