Home / 117,455.30-162,088.76-63,740.31

Finding the Fourth Proportional to 117,455.30, 162,088.76 and 63,740.31

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Solution

The fourth proportional to 117,455.30, 162,088.76 and 63,740.31 is: 87,961.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,455.30 : 162,088.76 = 63,740.31 : x
  2. Step 2: Convert to fraction form
    117,455.30/162,088.76 = 63,740.31/x
  3. Step 3: Cross multiply
    117,455.30x = 162,088.76 × 63,740.31
  4. Step 4: Simplify right side
    117,455.30x = 10,331,587,809.92
  5. Step 5: Solve for x
    x = 10,331,587,809.92/117,455.30
  6. Step 6: Final answer
    x = 87,961.87

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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.