Home / 121,462.40-182,193.60-51,420.80

Finding the Fourth Proportional to 121,462.40, 182,193.60 and 51,420.80

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Solution

The fourth proportional to 121,462.40, 182,193.60 and 51,420.80 is: 77,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,462.40 : 182,193.60 = 51,420.80 : x
  2. Step 2: Convert to fraction form
    121,462.40/182,193.60 = 51,420.80/x
  3. Step 3: Cross multiply
    121,462.40x = 182,193.60 × 51,420.80
  4. Step 4: Simplify right side
    121,462.40x = 9,368,540,666.88
  5. Step 5: Solve for x
    x = 9,368,540,666.88/121,462.40
  6. Step 6: Final answer
    x = 77,131.20

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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.