Home / 156,669.90-235,004.85-90,314.70

Finding the Fourth Proportional to 156,669.90, 235,004.85 and 90,314.70

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Solution

The fourth proportional to 156,669.90, 235,004.85 and 90,314.70 is: 135,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,669.90 : 235,004.85 = 90,314.70 : x
  2. Step 2: Convert to fraction form
    156,669.90/235,004.85 = 90,314.70/x
  3. Step 3: Cross multiply
    156,669.90x = 235,004.85 × 90,314.70
  4. Step 4: Simplify right side
    156,669.90x = 21,224,392,526.30
  5. Step 5: Solve for x
    x = 21,224,392,526.30/156,669.90
  6. Step 6: Final answer
    x = 135,472.05

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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.