Home / 114,520.13-171,697.14-76,987.10

Finding the Fourth Proportional to 114,520.13, 171,697.14 and 76,987.10

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Solution

The fourth proportional to 114,520.13, 171,697.14 and 76,987.10 is: 115,424.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,520.13 : 171,697.14 = 76,987.10 : x
  2. Step 2: Convert to fraction form
    114,520.13/171,697.14 = 76,987.10/x
  3. Step 3: Cross multiply
    114,520.13x = 171,697.14 × 76,987.10
  4. Step 4: Simplify right side
    114,520.13x = 13,218,464,886.89
  5. Step 5: Solve for x
    x = 13,218,464,886.89/114,520.13
  6. Step 6: Final answer
    x = 115,424.82

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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.