Home / 188,421.18-260,083.62-123,937.80

Finding the Fourth Proportional to 188,421.18, 260,083.62 and 123,937.80

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Solution

The fourth proportional to 188,421.18, 260,083.62 and 123,937.80 is: 171,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,421.18 : 260,083.62 = 123,937.80 : x
  2. Step 2: Convert to fraction form
    188,421.18/260,083.62 = 123,937.80/x
  3. Step 3: Cross multiply
    188,421.18x = 260,083.62 × 123,937.80
  4. Step 4: Simplify right side
    188,421.18x = 32,234,191,678.84
  5. Step 5: Solve for x
    x = 32,234,191,678.84/188,421.18
  6. Step 6: Final answer
    x = 171,075.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.