Home / 423,501.30-635,117.09-139,125.84

Finding the Fourth Proportional to 423,501.30, 635,117.09 and 139,125.84

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Solution

The fourth proportional to 423,501.30, 635,117.09 and 139,125.84 is: 208,644.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,501.30 : 635,117.09 = 139,125.84 : x
  2. Step 2: Convert to fraction form
    423,501.30/635,117.09 = 139,125.84/x
  3. Step 3: Cross multiply
    423,501.30x = 635,117.09 × 139,125.84
  4. Step 4: Simplify right side
    423,501.30x = 88,361,200,330.67
  5. Step 5: Solve for x
    x = 88,361,200,330.67/423,501.30
  6. Step 6: Final answer
    x = 208,644.46

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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.