Home / 86,985.07-119,772.48-76,168.06

Finding the Fourth Proportional to 86,985.07, 119,772.48 and 76,168.06

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Solution

The fourth proportional to 86,985.07, 119,772.48 and 76,168.06 is: 104,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,985.07 : 119,772.48 = 76,168.06 : x
  2. Step 2: Convert to fraction form
    86,985.07/119,772.48 = 76,168.06/x
  3. Step 3: Cross multiply
    86,985.07x = 119,772.48 × 76,168.06
  4. Step 4: Simplify right side
    86,985.07x = 9,122,837,442.99
  5. Step 5: Solve for x
    x = 9,122,837,442.99/86,985.07
  6. Step 6: Final answer
    x = 104,878.20

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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.