Home / 189,005.10-260,468.18-135,196.70

Finding the Fourth Proportional to 189,005.10, 260,468.18 and 135,196.70

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Solution

The fourth proportional to 189,005.10, 260,468.18 and 135,196.70 is: 186,314.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,005.10 : 260,468.18 = 135,196.70 : x
  2. Step 2: Convert to fraction form
    189,005.10/260,468.18 = 135,196.70/x
  3. Step 3: Cross multiply
    189,005.10x = 260,468.18 × 135,196.70
  4. Step 4: Simplify right side
    189,005.10x = 35,214,438,391.01
  5. Step 5: Solve for x
    x = 35,214,438,391.01/189,005.10
  6. Step 6: Final answer
    x = 186,314.75

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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.