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Finding the Fourth Proportional to 121,767.88, 182,670.06 and 42,868.22

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Solution

The fourth proportional to 121,767.88, 182,670.06 and 42,868.22 is: 64,308.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,767.88 : 182,670.06 = 42,868.22 : x
  2. Step 2: Convert to fraction form
    121,767.88/182,670.06 = 42,868.22/x
  3. Step 3: Cross multiply
    121,767.88x = 182,670.06 × 42,868.22
  4. Step 4: Simplify right side
    121,767.88x = 7,830,740,319.49
  5. Step 5: Solve for x
    x = 7,830,740,319.49/121,767.88
  6. Step 6: Final answer
    x = 64,308.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.