Home / 122,030.40-182,851.20-90,537.60

Finding the Fourth Proportional to 122,030.40, 182,851.20 and 90,537.60

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Solution

The fourth proportional to 122,030.40, 182,851.20 and 90,537.60 is: 135,662.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,030.40 : 182,851.20 = 90,537.60 : x
  2. Step 2: Convert to fraction form
    122,030.40/182,851.20 = 90,537.60/x
  3. Step 3: Cross multiply
    122,030.40x = 182,851.20 × 90,537.60
  4. Step 4: Simplify right side
    122,030.40x = 16,554,908,805.12
  5. Step 5: Solve for x
    x = 16,554,908,805.12/122,030.40
  6. Step 6: Final answer
    x = 135,662.17

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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.