Home / 121,790.36-182,226.18-71,897.60

Finding the Fourth Proportional to 121,790.36, 182,226.18 and 71,897.60

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Solution

The fourth proportional to 121,790.36, 182,226.18 and 71,897.60 is: 107,575.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,790.36 : 182,226.18 = 71,897.60 : x
  2. Step 2: Convert to fraction form
    121,790.36/182,226.18 = 71,897.60/x
  3. Step 3: Cross multiply
    121,790.36x = 182,226.18 × 71,897.60
  4. Step 4: Simplify right side
    121,790.36x = 13,101,624,999.17
  5. Step 5: Solve for x
    x = 13,101,624,999.17/121,790.36
  6. Step 6: Final answer
    x = 107,575.22

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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.