Home / 117,854.49-162,636.08-64,138.35

Finding the Fourth Proportional to 117,854.49, 162,636.08 and 64,138.35

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Solution

The fourth proportional to 117,854.49, 162,636.08 and 64,138.35 is: 88,509.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,854.49 : 162,636.08 = 64,138.35 : x
  2. Step 2: Convert to fraction form
    117,854.49/162,636.08 = 64,138.35/x
  3. Step 3: Cross multiply
    117,854.49x = 162,636.08 × 64,138.35
  4. Step 4: Simplify right side
    117,854.49x = 10,431,209,500.98
  5. Step 5: Solve for x
    x = 10,431,209,500.98/117,854.49
  6. Step 6: Final answer
    x = 88,509.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.