Home / 103,087.40-154,631.10-89,570.60

Finding the Fourth Proportional to 103,087.40, 154,631.10 and 89,570.60

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Solution

The fourth proportional to 103,087.40, 154,631.10 and 89,570.60 is: 134,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,087.40 : 154,631.10 = 89,570.60 : x
  2. Step 2: Convert to fraction form
    103,087.40/154,631.10 = 89,570.60/x
  3. Step 3: Cross multiply
    103,087.40x = 154,631.10 × 89,570.60
  4. Step 4: Simplify right side
    103,087.40x = 13,850,400,405.66
  5. Step 5: Solve for x
    x = 13,850,400,405.66/103,087.40
  6. Step 6: Final answer
    x = 134,355.90

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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.