Home / 109,026.81-163,543.29-30,141.03

Finding the Fourth Proportional to 109,026.81, 163,543.29 and 30,141.03

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Solution

The fourth proportional to 109,026.81, 163,543.29 and 30,141.03 is: 45,212.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,026.81 : 163,543.29 = 30,141.03 : x
  2. Step 2: Convert to fraction form
    109,026.81/163,543.29 = 30,141.03/x
  3. Step 3: Cross multiply
    109,026.81x = 163,543.29 × 30,141.03
  4. Step 4: Simplify right side
    109,026.81x = 4,929,362,790.52
  5. Step 5: Solve for x
    x = 4,929,362,790.52/109,026.81
  6. Step 6: Final answer
    x = 45,212.39

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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.