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Finding the Fourth Proportional to 125,533.16, 189,163.28 and 103,834.88

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Solution

The fourth proportional to 125,533.16, 189,163.28 and 103,834.88 is: 156,466.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,533.16 : 189,163.28 = 103,834.88 : x
  2. Step 2: Convert to fraction form
    125,533.16/189,163.28 = 103,834.88/x
  3. Step 3: Cross multiply
    125,533.16x = 189,163.28 × 103,834.88
  4. Step 4: Simplify right side
    125,533.16x = 19,641,746,479.21
  5. Step 5: Solve for x
    x = 19,641,746,479.21/125,533.16
  6. Step 6: Final answer
    x = 156,466.60

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.