Home / 118,220.20-177,038.70-78,562.60

Finding the Fourth Proportional to 118,220.20, 177,038.70 and 78,562.60

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Solution

The fourth proportional to 118,220.20, 177,038.70 and 78,562.60 is: 117,650.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,220.20 : 177,038.70 = 78,562.60 : x
  2. Step 2: Convert to fraction form
    118,220.20/177,038.70 = 78,562.60/x
  3. Step 3: Cross multiply
    118,220.20x = 177,038.70 × 78,562.60
  4. Step 4: Simplify right side
    118,220.20x = 13,908,620,572.62
  5. Step 5: Solve for x
    x = 13,908,620,572.62/118,220.20
  6. Step 6: Final answer
    x = 117,650.12

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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.