Home / 113,904.12-157,189.38-66,157.50

Finding the Fourth Proportional to 113,904.12, 157,189.38 and 66,157.50

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Solution

The fourth proportional to 113,904.12, 157,189.38 and 66,157.50 is: 91,298.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,904.12 : 157,189.38 = 66,157.50 : x
  2. Step 2: Convert to fraction form
    113,904.12/157,189.38 = 66,157.50/x
  3. Step 3: Cross multiply
    113,904.12x = 157,189.38 × 66,157.50
  4. Step 4: Simplify right side
    113,904.12x = 10,399,256,407.35
  5. Step 5: Solve for x
    x = 10,399,256,407.35/113,904.12
  6. Step 6: Final answer
    x = 91,298.33

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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.