Home / 189,613.80-284,368.86-71,276.04

Finding the Fourth Proportional to 189,613.80, 284,368.86 and 71,276.04

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Solution

The fourth proportional to 189,613.80, 284,368.86 and 71,276.04 is: 106,894.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,613.80 : 284,368.86 = 71,276.04 : x
  2. Step 2: Convert to fraction form
    189,613.80/284,368.86 = 71,276.04/x
  3. Step 3: Cross multiply
    189,613.80x = 284,368.86 × 71,276.04
  4. Step 4: Simplify right side
    189,613.80x = 20,268,686,240.11
  5. Step 5: Solve for x
    x = 20,268,686,240.11/189,613.80
  6. Step 6: Final answer
    x = 106,894.57

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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.