Home / 137,557,308.52-189,750,255.78-85,959,505

Finding the Fourth Proportional to 137,557,308.52, 189,750,255.78 and 85,959,505

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Solution

The fourth proportional to 137,557,308.52, 189,750,255.78 and 85,959,505 is: 118,574,856.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,557,308.52 : 189,750,255.78 = 85,959,505 : x
  2. Step 2: Convert to fraction form
    137,557,308.52/189,750,255.78 = 85,959,505/x
  3. Step 3: Cross multiply
    137,557,308.52x = 189,750,255.78 × 85,959,505
  4. Step 4: Simplify right side
    137,557,308.52x = 16,310,838,060,472,190
  5. Step 5: Solve for x
    x = 16,310,838,060,472,190/137,557,308.52
  6. Step 6: Final answer
    x = 118,574,856.08

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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.