Home / 189,404.48-283,836-139,089.92

Finding the Fourth Proportional to 189,404.48, 283,836 and 139,089.92

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Solution

The fourth proportional to 189,404.48, 283,836 and 139,089.92 is: 208,436.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,404.48 : 283,836 = 139,089.92 : x
  2. Step 2: Convert to fraction form
    189,404.48/283,836 = 139,089.92/x
  3. Step 3: Cross multiply
    189,404.48x = 283,836 × 139,089.92
  4. Step 4: Simplify right side
    189,404.48x = 39,478,726,533.12
  5. Step 5: Solve for x
    x = 39,478,726,533.12/189,404.48
  6. Step 6: Final answer
    x = 208,436.08

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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.