Home / 168,038.46-231,820.22-100,017.29

Finding the Fourth Proportional to 168,038.46, 231,820.22 and 100,017.29

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Solution

The fourth proportional to 168,038.46, 231,820.22 and 100,017.29 is: 137,980.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,038.46 : 231,820.22 = 100,017.29 : x
  2. Step 2: Convert to fraction form
    168,038.46/231,820.22 = 100,017.29/x
  3. Step 3: Cross multiply
    168,038.46x = 231,820.22 × 100,017.29
  4. Step 4: Simplify right side
    168,038.46x = 23,186,030,623.95
  5. Step 5: Solve for x
    x = 23,186,030,623.95/168,038.46
  6. Step 6: Final answer
    x = 137,980.50

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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.