Home / 158,541.55-218,801.14-86,935.52

Finding the Fourth Proportional to 158,541.55, 218,801.14 and 86,935.52

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Solution

The fourth proportional to 158,541.55, 218,801.14 and 86,935.52 is: 119,978.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,541.55 : 218,801.14 = 86,935.52 : x
  2. Step 2: Convert to fraction form
    158,541.55/218,801.14 = 86,935.52/x
  3. Step 3: Cross multiply
    158,541.55x = 218,801.14 × 86,935.52
  4. Step 4: Simplify right side
    158,541.55x = 19,021,591,212.16
  5. Step 5: Solve for x
    x = 19,021,591,212.16/158,541.55
  6. Step 6: Final answer
    x = 119,978.59

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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.