Home / 118,089.87-163,021.26-75,102.34

Finding the Fourth Proportional to 118,089.87, 163,021.26 and 75,102.34

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Solution

The fourth proportional to 118,089.87, 163,021.26 and 75,102.34 is: 103,677.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,089.87 : 163,021.26 = 75,102.34 : x
  2. Step 2: Convert to fraction form
    118,089.87/163,021.26 = 75,102.34/x
  3. Step 3: Cross multiply
    118,089.87x = 163,021.26 × 75,102.34
  4. Step 4: Simplify right side
    118,089.87x = 12,243,277,853.04
  5. Step 5: Solve for x
    x = 12,243,277,853.04/118,089.87
  6. Step 6: Final answer
    x = 103,677.63

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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.