Home / 158,310.45-218,461.86-86,689.24

Finding the Fourth Proportional to 158,310.45, 218,461.86 and 86,689.24

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Solution

The fourth proportional to 158,310.45, 218,461.86 and 86,689.24 is: 119,627.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,310.45 : 218,461.86 = 86,689.24 : x
  2. Step 2: Convert to fraction form
    158,310.45/218,461.86 = 86,689.24/x
  3. Step 3: Cross multiply
    158,310.45x = 218,461.86 × 86,689.24
  4. Step 4: Simplify right side
    158,310.45x = 18,938,292,066.23
  5. Step 5: Solve for x
    x = 18,938,292,066.23/158,310.45
  6. Step 6: Final answer
    x = 119,627.56

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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.