Home / 163,131.90-225,120.63-91,510.35

Finding the Fourth Proportional to 163,131.90, 225,120.63 and 91,510.35

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Solution

The fourth proportional to 163,131.90, 225,120.63 and 91,510.35 is: 126,283.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,131.90 : 225,120.63 = 91,510.35 : x
  2. Step 2: Convert to fraction form
    163,131.90/225,120.63 = 91,510.35/x
  3. Step 3: Cross multiply
    163,131.90x = 225,120.63 × 91,510.35
  4. Step 4: Simplify right side
    163,131.90x = 20,600,867,643.52
  5. Step 5: Solve for x
    x = 20,600,867,643.52/163,131.90
  6. Step 6: Final answer
    x = 126,283.50

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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.