Home / 157,990.14-236,985.66-45,679.50

Finding the Fourth Proportional to 157,990.14, 236,985.66 and 45,679.50

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Solution

The fourth proportional to 157,990.14, 236,985.66 and 45,679.50 is: 68,519.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,990.14 : 236,985.66 = 45,679.50 : x
  2. Step 2: Convert to fraction form
    157,990.14/236,985.66 = 45,679.50/x
  3. Step 3: Cross multiply
    157,990.14x = 236,985.66 × 45,679.50
  4. Step 4: Simplify right side
    157,990.14x = 10,825,386,455.97
  5. Step 5: Solve for x
    x = 10,825,386,455.97/157,990.14
  6. Step 6: Final answer
    x = 68,519.38

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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.