Home / 189,813.40-284,829.45-71,569.60

Finding the Fourth Proportional to 189,813.40, 284,829.45 and 71,569.60

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Solution

The fourth proportional to 189,813.40, 284,829.45 and 71,569.60 is: 107,395.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,813.40 : 284,829.45 = 71,569.60 : x
  2. Step 2: Convert to fraction form
    189,813.40/284,829.45 = 71,569.60/x
  3. Step 3: Cross multiply
    189,813.40x = 284,829.45 × 71,569.60
  4. Step 4: Simplify right side
    189,813.40x = 20,385,129,804.72
  5. Step 5: Solve for x
    x = 20,385,129,804.72/189,813.40
  6. Step 6: Final answer
    x = 107,395.63

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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.