Home / 151,709.86-209,316.45-91,250.26

Finding the Fourth Proportional to 151,709.86, 209,316.45 and 91,250.26

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Solution

The fourth proportional to 151,709.86, 209,316.45 and 91,250.26 is: 125,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,709.86 : 209,316.45 = 91,250.26 : x
  2. Step 2: Convert to fraction form
    151,709.86/209,316.45 = 91,250.26/x
  3. Step 3: Cross multiply
    151,709.86x = 209,316.45 × 91,250.26
  4. Step 4: Simplify right side
    151,709.86x = 19,100,180,484.78
  5. Step 5: Solve for x
    x = 19,100,180,484.78/151,709.86
  6. Step 6: Final answer
    x = 125,899.40

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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.