Home / 151,360.31-208,877.28-87,735.02

Finding the Fourth Proportional to 151,360.31, 208,877.28 and 87,735.02

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Solution

The fourth proportional to 151,360.31, 208,877.28 and 87,735.02 is: 121,074.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,360.31 : 208,877.28 = 87,735.02 : x
  2. Step 2: Convert to fraction form
    151,360.31/208,877.28 = 87,735.02/x
  3. Step 3: Cross multiply
    151,360.31x = 208,877.28 × 87,735.02
  4. Step 4: Simplify right side
    151,360.31x = 18,325,851,458.46
  5. Step 5: Solve for x
    x = 18,325,851,458.46/151,360.31
  6. Step 6: Final answer
    x = 121,074.35

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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.