Home / 157,072.96-235,655.88-90,560.80

Finding the Fourth Proportional to 157,072.96, 235,655.88 and 90,560.80

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Solution

The fourth proportional to 157,072.96, 235,655.88 and 90,560.80 is: 135,867.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,072.96 : 235,655.88 = 90,560.80 : x
  2. Step 2: Convert to fraction form
    157,072.96/235,655.88 = 90,560.80/x
  3. Step 3: Cross multiply
    157,072.96x = 235,655.88 × 90,560.80
  4. Step 4: Simplify right side
    157,072.96x = 21,341,185,017.50
  5. Step 5: Solve for x
    x = 21,341,185,017.50/157,072.96
  6. Step 6: Final answer
    x = 135,867.98

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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.