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Finding the Fourth Proportional to 189,030.40, 283,315.20 and 83,737.60

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Solution

The fourth proportional to 189,030.40, 283,315.20 and 83,737.60 is: 125,504.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,030.40 : 283,315.20 = 83,737.60 : x
  2. Step 2: Convert to fraction form
    189,030.40/283,315.20 = 83,737.60/x
  3. Step 3: Cross multiply
    189,030.40x = 283,315.20 × 83,737.60
  4. Step 4: Simplify right side
    189,030.40x = 23,724,134,891.52
  5. Step 5: Solve for x
    x = 23,724,134,891.52/189,030.40
  6. Step 6: Final answer
    x = 125,504.34

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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.