Home / 154,669.18-213,461.18-86,704.52

Finding the Fourth Proportional to 154,669.18, 213,461.18 and 86,704.52

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Solution

The fourth proportional to 154,669.18, 213,461.18 and 86,704.52 is: 119,662.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,669.18 : 213,461.18 = 86,704.52 : x
  2. Step 2: Convert to fraction form
    154,669.18/213,461.18 = 86,704.52/x
  3. Step 3: Cross multiply
    154,669.18x = 213,461.18 × 86,704.52
  4. Step 4: Simplify right side
    154,669.18x = 18,508,049,150.53
  5. Step 5: Solve for x
    x = 18,508,049,150.53/154,669.18
  6. Step 6: Final answer
    x = 119,662.17

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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.