Home / 116,148.52-174,105.15-78,712.39

Finding the Fourth Proportional to 116,148.52, 174,105.15 and 78,712.39

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Solution

The fourth proportional to 116,148.52, 174,105.15 and 78,712.39 is: 117,988.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,148.52 : 174,105.15 = 78,712.39 : x
  2. Step 2: Convert to fraction form
    116,148.52/174,105.15 = 78,712.39/x
  3. Step 3: Cross multiply
    116,148.52x = 174,105.15 × 78,712.39
  4. Step 4: Simplify right side
    116,148.52x = 13,704,232,467.81
  5. Step 5: Solve for x
    x = 13,704,232,467.81/116,148.52
  6. Step 6: Final answer
    x = 117,988.87

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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.