Home / 91,826.60-137,739.90-82,495.40

Finding the Fourth Proportional to 91,826.60, 137,739.90 and 82,495.40

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Solution

The fourth proportional to 91,826.60, 137,739.90 and 82,495.40 is: 123,743.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,826.60 : 137,739.90 = 82,495.40 : x
  2. Step 2: Convert to fraction form
    91,826.60/137,739.90 = 82,495.40/x
  3. Step 3: Cross multiply
    91,826.60x = 137,739.90 × 82,495.40
  4. Step 4: Simplify right side
    91,826.60x = 11,362,908,146.46
  5. Step 5: Solve for x
    x = 11,362,908,146.46/91,826.60
  6. Step 6: Final answer
    x = 123,743.10

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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.