Home / 112,948.80-169,438.86-38,090.40

Finding the Fourth Proportional to 112,948.80, 169,438.86 and 38,090.40

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Solution

The fourth proportional to 112,948.80, 169,438.86 and 38,090.40 is: 57,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,948.80 : 169,438.86 = 38,090.40 : x
  2. Step 2: Convert to fraction form
    112,948.80/169,438.86 = 38,090.40/x
  3. Step 3: Cross multiply
    112,948.80x = 169,438.86 × 38,090.40
  4. Step 4: Simplify right side
    112,948.80x = 6,453,993,952.94
  5. Step 5: Solve for x
    x = 6,453,993,952.94/112,948.80
  6. Step 6: Final answer
    x = 57,140.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.