Home / 118,129.27-163,012.21-67,135.18

Finding the Fourth Proportional to 118,129.27, 163,012.21 and 67,135.18

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Solution

The fourth proportional to 118,129.27, 163,012.21 and 67,135.18 is: 92,643.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,129.27 : 163,012.21 = 67,135.18 : x
  2. Step 2: Convert to fraction form
    118,129.27/163,012.21 = 67,135.18/x
  3. Step 3: Cross multiply
    118,129.27x = 163,012.21 × 67,135.18
  4. Step 4: Simplify right side
    118,129.27x = 10,943,854,060.55
  5. Step 5: Solve for x
    x = 10,943,854,060.55/118,129.27
  6. Step 6: Final answer
    x = 92,643.03

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1.5x scale

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.