Home / 155,625.12-214,699.68-99,025.92

Finding the Fourth Proportional to 155,625.12, 214,699.68 and 99,025.92

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Solution

The fourth proportional to 155,625.12, 214,699.68 and 99,025.92 is: 136,615.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,625.12 : 214,699.68 = 99,025.92 : x
  2. Step 2: Convert to fraction form
    155,625.12/214,699.68 = 99,025.92/x
  3. Step 3: Cross multiply
    155,625.12x = 214,699.68 × 99,025.92
  4. Step 4: Simplify right side
    155,625.12x = 21,260,833,335.71
  5. Step 5: Solve for x
    x = 21,260,833,335.71/155,625.12
  6. Step 6: Final answer
    x = 136,615.69

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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.