Home / 109,386.36-163,980.90-39,249.18

Finding the Fourth Proportional to 109,386.36, 163,980.90 and 39,249.18

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Solution

The fourth proportional to 109,386.36, 163,980.90 and 39,249.18 is: 58,838.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,386.36 : 163,980.90 = 39,249.18 : x
  2. Step 2: Convert to fraction form
    109,386.36/163,980.90 = 39,249.18/x
  3. Step 3: Cross multiply
    109,386.36x = 163,980.90 × 39,249.18
  4. Step 4: Simplify right side
    109,386.36x = 6,436,115,860.66
  5. Step 5: Solve for x
    x = 6,436,115,860.66/109,386.36
  6. Step 6: Final answer
    x = 58,838.38

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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.