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Finding the Fourth Proportional to 155,752.48, 214,938.51 and 84,132.50

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Solution

The fourth proportional to 155,752.48, 214,938.51 and 84,132.50 is: 116,102.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,752.48 : 214,938.51 = 84,132.50 : x
  2. Step 2: Convert to fraction form
    155,752.48/214,938.51 = 84,132.50/x
  3. Step 3: Cross multiply
    155,752.48x = 214,938.51 × 84,132.50
  4. Step 4: Simplify right side
    155,752.48x = 18,083,313,117.88
  5. Step 5: Solve for x
    x = 18,083,313,117.88/155,752.48
  6. Step 6: Final answer
    x = 116,102.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.