Home / 160,580.36-240,639.60-90,311.24

Finding the Fourth Proportional to 160,580.36, 240,639.60 and 90,311.24

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Solution

The fourth proportional to 160,580.36, 240,639.60 and 90,311.24 is: 135,336.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,580.36 : 240,639.60 = 90,311.24 : x
  2. Step 2: Convert to fraction form
    160,580.36/240,639.60 = 90,311.24/x
  3. Step 3: Cross multiply
    160,580.36x = 240,639.60 × 90,311.24
  4. Step 4: Simplify right side
    160,580.36x = 21,732,460,669.10
  5. Step 5: Solve for x
    x = 21,732,460,669.10/160,580.36
  6. Step 6: Final answer
    x = 135,336.98

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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.