Home / 115,107.28-172,636.31-35,127.32

Finding the Fourth Proportional to 115,107.28, 172,636.31 and 35,127.32

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Solution

The fourth proportional to 115,107.28, 172,636.31 and 35,127.32 is: 52,683.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,107.28 : 172,636.31 = 35,127.32 : x
  2. Step 2: Convert to fraction form
    115,107.28/172,636.31 = 35,127.32/x
  3. Step 3: Cross multiply
    115,107.28x = 172,636.31 × 35,127.32
  4. Step 4: Simplify right side
    115,107.28x = 6,064,251,100.71
  5. Step 5: Solve for x
    x = 6,064,251,100.71/115,107.28
  6. Step 6: Final answer
    x = 52,683.47

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1.5x scale

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.