Home / 423,904.24-636,102.60-139,801.60

Finding the Fourth Proportional to 423,904.24, 636,102.60 and 139,801.60

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Solution

The fourth proportional to 423,904.24, 636,102.60 and 139,801.60 is: 209,783.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,904.24 : 636,102.60 = 139,801.60 : x
  2. Step 2: Convert to fraction form
    423,904.24/636,102.60 = 139,801.60/x
  3. Step 3: Cross multiply
    423,904.24x = 636,102.60 × 139,801.60
  4. Step 4: Simplify right side
    423,904.24x = 88,928,161,244.16
  5. Step 5: Solve for x
    x = 88,928,161,244.16/423,904.24
  6. Step 6: Final answer
    x = 209,783.61

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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.