Home / 151,319.76-208,758.60-90,053.70

Finding the Fourth Proportional to 151,319.76, 208,758.60 and 90,053.70

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Solution

The fourth proportional to 151,319.76, 208,758.60 and 90,053.70 is: 124,236.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,319.76 : 208,758.60 = 90,053.70 : x
  2. Step 2: Convert to fraction form
    151,319.76/208,758.60 = 90,053.70/x
  3. Step 3: Cross multiply
    151,319.76x = 208,758.60 × 90,053.70
  4. Step 4: Simplify right side
    151,319.76x = 18,799,484,336.82
  5. Step 5: Solve for x
    x = 18,799,484,336.82/151,319.76
  6. Step 6: Final answer
    x = 124,236.81

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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.