Home / 118,143.66-163,050.90-72,230.25

Finding the Fourth Proportional to 118,143.66, 163,050.90 and 72,230.25

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Solution

The fourth proportional to 118,143.66, 163,050.90 and 72,230.25 is: 99,685.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,143.66 : 163,050.90 = 72,230.25 : x
  2. Step 2: Convert to fraction form
    118,143.66/163,050.90 = 72,230.25/x
  3. Step 3: Cross multiply
    118,143.66x = 163,050.90 × 72,230.25
  4. Step 4: Simplify right side
    118,143.66x = 11,777,206,437.80
  5. Step 5: Solve for x
    x = 11,777,206,437.80/118,143.66
  6. Step 6: Final answer
    x = 99,685.47

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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.