Home / 151,367.68-208,855.44-87,701.60

Finding the Fourth Proportional to 151,367.68, 208,855.44 and 87,701.60

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Solution

The fourth proportional to 151,367.68, 208,855.44 and 87,701.60 is: 121,009.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,367.68 : 208,855.44 = 87,701.60 : x
  2. Step 2: Convert to fraction form
    151,367.68/208,855.44 = 87,701.60/x
  3. Step 3: Cross multiply
    151,367.68x = 208,855.44 × 87,701.60
  4. Step 4: Simplify right side
    151,367.68x = 18,316,956,256.70
  5. Step 5: Solve for x
    x = 18,316,956,256.70/151,367.68
  6. Step 6: Final answer
    x = 121,009.69

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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.