Home / 278,075.10-417,108.33-67,711.26

Finding the Fourth Proportional to 278,075.10, 417,108.33 and 67,711.26

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Solution

The fourth proportional to 278,075.10, 417,108.33 and 67,711.26 is: 101,565.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,075.10 : 417,108.33 = 67,711.26 : x
  2. Step 2: Convert to fraction form
    278,075.10/417,108.33 = 67,711.26/x
  3. Step 3: Cross multiply
    278,075.10x = 417,108.33 × 67,711.26
  4. Step 4: Simplify right side
    278,075.10x = 28,242,930,580.80
  5. Step 5: Solve for x
    x = 28,242,930,580.80/278,075.10
  6. Step 6: Final answer
    x = 101,565.84

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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.