Home / 121,523.40-167,780.34-76,263.48

Finding the Fourth Proportional to 121,523.40, 167,780.34 and 76,263.48

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Solution

The fourth proportional to 121,523.40, 167,780.34 and 76,263.48 is: 105,292.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,523.40 : 167,780.34 = 76,263.48 : x
  2. Step 2: Convert to fraction form
    121,523.40/167,780.34 = 76,263.48/x
  3. Step 3: Cross multiply
    121,523.40x = 167,780.34 × 76,263.48
  4. Step 4: Simplify right side
    121,523.40x = 12,795,512,603.98
  5. Step 5: Solve for x
    x = 12,795,512,603.98/121,523.40
  6. Step 6: Final answer
    x = 105,292.58

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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.