Home / 149,612.70-224,307.45-90,435.90

Finding the Fourth Proportional to 149,612.70, 224,307.45 and 90,435.90

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Solution

The fourth proportional to 149,612.70, 224,307.45 and 90,435.90 is: 135,586.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,612.70 : 224,307.45 = 90,435.90 : x
  2. Step 2: Convert to fraction form
    149,612.70/224,307.45 = 90,435.90/x
  3. Step 3: Cross multiply
    149,612.70x = 224,307.45 × 90,435.90
  4. Step 4: Simplify right side
    149,612.70x = 20,285,446,117.46
  5. Step 5: Solve for x
    x = 20,285,446,117.46/149,612.70
  6. Step 6: Final answer
    x = 135,586.39

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1.5x scale

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.