Home / 118,769.74-163,904.60-65,054.76

Finding the Fourth Proportional to 118,769.74, 163,904.60 and 65,054.76

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Solution

The fourth proportional to 118,769.74, 163,904.60 and 65,054.76 is: 89,776.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,769.74 : 163,904.60 = 65,054.76 : x
  2. Step 2: Convert to fraction form
    118,769.74/163,904.60 = 65,054.76/x
  3. Step 3: Cross multiply
    118,769.74x = 163,904.60 × 65,054.76
  4. Step 4: Simplify right side
    118,769.74x = 10,662,774,415.90
  5. Step 5: Solve for x
    x = 10,662,774,415.90/118,769.74
  6. Step 6: Final answer
    x = 89,776.86

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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.