Home / 128,831.68-193,254.04-35,338.24

Finding the Fourth Proportional to 128,831.68, 193,254.04 and 35,338.24

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Solution

The fourth proportional to 128,831.68, 193,254.04 and 35,338.24 is: 53,009.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,831.68 : 193,254.04 = 35,338.24 : x
  2. Step 2: Convert to fraction form
    128,831.68/193,254.04 = 35,338.24/x
  3. Step 3: Cross multiply
    128,831.68x = 193,254.04 × 35,338.24
  4. Step 4: Simplify right side
    128,831.68x = 6,829,257,646.49
  5. Step 5: Solve for x
    x = 6,829,257,646.49/128,831.68
  6. Step 6: Final answer
    x = 53,009.15

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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.