Home / 118,616.10-163,690.11-64,901.34

Finding the Fourth Proportional to 118,616.10, 163,690.11 and 64,901.34

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Solution

The fourth proportional to 118,616.10, 163,690.11 and 64,901.34 is: 89,563.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,616.10 : 163,690.11 = 64,901.34 : x
  2. Step 2: Convert to fraction form
    118,616.10/163,690.11 = 64,901.34/x
  3. Step 3: Cross multiply
    118,616.10x = 163,690.11 × 64,901.34
  4. Step 4: Simplify right side
    118,616.10x = 10,623,707,483.75
  5. Step 5: Solve for x
    x = 10,623,707,483.75/118,616.10
  6. Step 6: Final answer
    x = 89,563.79

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1.5x scale

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.