Home / 118,278.40-177,445.98-39,393.34

Finding the Fourth Proportional to 118,278.40, 177,445.98 and 39,393.34

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Solution

The fourth proportional to 118,278.40, 177,445.98 and 39,393.34 is: 59,099.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,278.40 : 177,445.98 = 39,393.34 : x
  2. Step 2: Convert to fraction form
    118,278.40/177,445.98 = 39,393.34/x
  3. Step 3: Cross multiply
    118,278.40x = 177,445.98 × 39,393.34
  4. Step 4: Simplify right side
    118,278.40x = 6,990,189,821.77
  5. Step 5: Solve for x
    x = 6,990,189,821.77/118,278.40
  6. Step 6: Final answer
    x = 59,099.46

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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.