Home / 117,122.12-161,628.49-63,407.10

Finding the Fourth Proportional to 117,122.12, 161,628.49 and 63,407.10

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Solution

The fourth proportional to 117,122.12, 161,628.49 and 63,407.10 is: 87,501.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,122.12 : 161,628.49 = 63,407.10 : x
  2. Step 2: Convert to fraction form
    117,122.12/161,628.49 = 63,407.10/x
  3. Step 3: Cross multiply
    117,122.12x = 161,628.49 × 63,407.10
  4. Step 4: Simplify right side
    117,122.12x = 10,248,393,828.28
  5. Step 5: Solve for x
    x = 10,248,393,828.28/117,122.12
  6. Step 6: Final answer
    x = 87,501.78

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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.