Home / 117,854.16-162,699-90,936.24

Finding the Fourth Proportional to 117,854.16, 162,699 and 90,936.24

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Solution

The fourth proportional to 117,854.16, 162,699 and 90,936.24 is: 125,538.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,854.16 : 162,699 = 90,936.24 : x
  2. Step 2: Convert to fraction form
    117,854.16/162,699 = 90,936.24/x
  3. Step 3: Cross multiply
    117,854.16x = 162,699 × 90,936.24
  4. Step 4: Simplify right side
    117,854.16x = 14,795,235,311.76
  5. Step 5: Solve for x
    x = 14,795,235,311.76/117,854.16
  6. Step 6: Final answer
    x = 125,538.51

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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.