Home / 151,026.75-208,421.43-83,040.21

Finding the Fourth Proportional to 151,026.75, 208,421.43 and 83,040.21

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Solution

The fourth proportional to 151,026.75, 208,421.43 and 83,040.21 is: 114,597.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,026.75 : 208,421.43 = 83,040.21 : x
  2. Step 2: Convert to fraction form
    151,026.75/208,421.43 = 83,040.21/x
  3. Step 3: Cross multiply
    151,026.75x = 208,421.43 × 83,040.21
  4. Step 4: Simplify right side
    151,026.75x = 17,307,359,315.70
  5. Step 5: Solve for x
    x = 17,307,359,315.70/151,026.75
  6. Step 6: Final answer
    x = 114,597.97

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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.