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Finding the Fourth Proportional to 188,078.60, 282,117.90 and 69,737.60

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Solution

The fourth proportional to 188,078.60, 282,117.90 and 69,737.60 is: 104,606.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,078.60 : 282,117.90 = 69,737.60 : x
  2. Step 2: Convert to fraction form
    188,078.60/282,117.90 = 69,737.60/x
  3. Step 3: Cross multiply
    188,078.60x = 282,117.90 × 69,737.60
  4. Step 4: Simplify right side
    188,078.60x = 19,674,225,263.04
  5. Step 5: Solve for x
    x = 19,674,225,263.04/188,078.60
  6. Step 6: Final answer
    x = 104,606.40

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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.