Home / 423,831.90-635,697.50-139,451.93

Finding the Fourth Proportional to 423,831.90, 635,697.50 and 139,451.93

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Solution

The fourth proportional to 423,831.90, 635,697.50 and 139,451.93 is: 209,161.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,831.90 : 635,697.50 = 139,451.93 : x
  2. Step 2: Convert to fraction form
    423,831.90/635,697.50 = 139,451.93/x
  3. Step 3: Cross multiply
    423,831.90x = 635,697.50 × 139,451.93
  4. Step 4: Simplify right side
    423,831.90x = 88,649,243,271.18
  5. Step 5: Solve for x
    x = 88,649,243,271.18/423,831.90
  6. Step 6: Final answer
    x = 209,161.33

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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.