Home / 118,635.75-163,717.34-64,920.77

Finding the Fourth Proportional to 118,635.75, 163,717.34 and 64,920.77

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Solution

The fourth proportional to 118,635.75, 163,717.34 and 64,920.77 is: 89,590.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,635.75 : 163,717.34 = 64,920.77 : x
  2. Step 2: Convert to fraction form
    118,635.75/163,717.34 = 64,920.77/x
  3. Step 3: Cross multiply
    118,635.75x = 163,717.34 × 64,920.77
  4. Step 4: Simplify right side
    118,635.75x = 10,628,654,956.57
  5. Step 5: Solve for x
    x = 10,628,654,956.57/118,635.75
  6. Step 6: Final answer
    x = 89,590.66

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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.