Home / 260,050.10-390,075.15-126,861.80

Finding the Fourth Proportional to 260,050.10, 390,075.15 and 126,861.80

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Solution

The fourth proportional to 260,050.10, 390,075.15 and 126,861.80 is: 190,292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,050.10 : 390,075.15 = 126,861.80 : x
  2. Step 2: Convert to fraction form
    260,050.10/390,075.15 = 126,861.80/x
  3. Step 3: Cross multiply
    260,050.10x = 390,075.15 × 126,861.80
  4. Step 4: Simplify right side
    260,050.10x = 49,485,635,664.27
  5. Step 5: Solve for x
    x = 49,485,635,664.27/260,050.10
  6. Step 6: Final answer
    x = 190,292.70

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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.