Home / 157,461.76-236,067.90-78,535.36

Finding the Fourth Proportional to 157,461.76, 236,067.90 and 78,535.36

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Solution

The fourth proportional to 157,461.76, 236,067.90 and 78,535.36 is: 117,740.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,461.76 : 236,067.90 = 78,535.36 : x
  2. Step 2: Convert to fraction form
    157,461.76/236,067.90 = 78,535.36/x
  3. Step 3: Cross multiply
    157,461.76x = 236,067.90 × 78,535.36
  4. Step 4: Simplify right side
    157,461.76x = 18,539,677,510.94
  5. Step 5: Solve for x
    x = 18,539,677,510.94/157,461.76
  6. Step 6: Final answer
    x = 117,740.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.