Home / 118,219.23-163,142.55-75,777.86

Finding the Fourth Proportional to 118,219.23, 163,142.55 and 75,777.86

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Solution

The fourth proportional to 118,219.23, 163,142.55 and 75,777.86 is: 104,573.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,219.23 : 163,142.55 = 75,777.86 : x
  2. Step 2: Convert to fraction form
    118,219.23/163,142.55 = 75,777.86/x
  3. Step 3: Cross multiply
    118,219.23x = 163,142.55 × 75,777.86
  4. Step 4: Simplify right side
    118,219.23x = 12,362,593,721.80
  5. Step 5: Solve for x
    x = 12,362,593,721.80/118,219.23
  6. Step 6: Final answer
    x = 104,573.46

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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.