Home / 154,033.47-212,563.85-86,051.43

Finding the Fourth Proportional to 154,033.47, 212,563.85 and 86,051.43

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Solution

The fourth proportional to 154,033.47, 212,563.85 and 86,051.43 is: 118,749.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,033.47 : 212,563.85 = 86,051.43 : x
  2. Step 2: Convert to fraction form
    154,033.47/212,563.85 = 86,051.43/x
  3. Step 3: Cross multiply
    154,033.47x = 212,563.85 × 86,051.43
  4. Step 4: Simplify right side
    154,033.47x = 18,291,422,828.55
  5. Step 5: Solve for x
    x = 18,291,422,828.55/154,033.47
  6. Step 6: Final answer
    x = 118,749.66

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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.