Home / 188,439.42-260,045.55-107,866.50

Finding the Fourth Proportional to 188,439.42, 260,045.55 and 107,866.50

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Solution

The fourth proportional to 188,439.42, 260,045.55 and 107,866.50 is: 148,855.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,439.42 : 260,045.55 = 107,866.50 : x
  2. Step 2: Convert to fraction form
    188,439.42/260,045.55 = 107,866.50/x
  3. Step 3: Cross multiply
    188,439.42x = 260,045.55 × 107,866.50
  4. Step 4: Simplify right side
    188,439.42x = 28,050,203,319.08
  5. Step 5: Solve for x
    x = 28,050,203,319.08/188,439.42
  6. Step 6: Final answer
    x = 148,855.28

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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.