Home / 113,999.76-157,167-79,962.48

Finding the Fourth Proportional to 113,999.76, 157,167 and 79,962.48

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Solution

The fourth proportional to 113,999.76, 157,167 and 79,962.48 is: 110,241.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,999.76 : 157,167 = 79,962.48 : x
  2. Step 2: Convert to fraction form
    113,999.76/157,167 = 79,962.48/x
  3. Step 3: Cross multiply
    113,999.76x = 157,167 × 79,962.48
  4. Step 4: Simplify right side
    113,999.76x = 12,567,463,094.16
  5. Step 5: Solve for x
    x = 12,567,463,094.16/113,999.76
  6. Step 6: Final answer
    x = 110,241.14

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1.5x scale

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.