Home / 423,487.13-635,095.97-139,111.70

Finding the Fourth Proportional to 423,487.13, 635,095.97 and 139,111.70

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Solution

The fourth proportional to 423,487.13, 635,095.97 and 139,111.70 is: 208,623.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,487.13 : 635,095.97 = 139,111.70 : x
  2. Step 2: Convert to fraction form
    423,487.13/635,095.97 = 139,111.70/x
  3. Step 3: Cross multiply
    423,487.13x = 635,095.97 × 139,111.70
  4. Step 4: Simplify right side
    423,487.13x = 88,349,278,809.89
  5. Step 5: Solve for x
    x = 88,349,278,809.89/423,487.13
  6. Step 6: Final answer
    x = 208,623.29

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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.