Home / 157,076.96-235,661.88-90,564.80

Finding the Fourth Proportional to 157,076.96, 235,661.88 and 90,564.80

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Solution

The fourth proportional to 157,076.96, 235,661.88 and 90,564.80 is: 135,873.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,076.96 : 235,661.88 = 90,564.80 : x
  2. Step 2: Convert to fraction form
    157,076.96/235,661.88 = 90,564.80/x
  3. Step 3: Cross multiply
    157,076.96x = 235,661.88 × 90,564.80
  4. Step 4: Simplify right side
    157,076.96x = 21,342,671,029.82
  5. Step 5: Solve for x
    x = 21,342,671,029.82/157,076.96
  6. Step 6: Final answer
    x = 135,873.98

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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.