Home / 142,559.90-196,655.06-91,580.65

Finding the Fourth Proportional to 142,559.90, 196,655.06 and 91,580.65

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Solution

The fourth proportional to 142,559.90, 196,655.06 and 91,580.65 is: 126,331.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,559.90 : 196,655.06 = 91,580.65 : x
  2. Step 2: Convert to fraction form
    142,559.90/196,655.06 = 91,580.65/x
  3. Step 3: Cross multiply
    142,559.90x = 196,655.06 × 91,580.65
  4. Step 4: Simplify right side
    142,559.90x = 18,009,797,762.69
  5. Step 5: Solve for x
    x = 18,009,797,762.69/142,559.90
  6. Step 6: Final answer
    x = 126,331.44

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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.