Home / 107,911.90-161,608.65-103,246.30

Finding the Fourth Proportional to 107,911.90, 161,608.65 and 103,246.30

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Solution

The fourth proportional to 107,911.90, 161,608.65 and 103,246.30 is: 154,621.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,911.90 : 161,608.65 = 103,246.30 : x
  2. Step 2: Convert to fraction form
    107,911.90/161,608.65 = 103,246.30/x
  3. Step 3: Cross multiply
    107,911.90x = 161,608.65 × 103,246.30
  4. Step 4: Simplify right side
    107,911.90x = 16,685,495,160.50
  5. Step 5: Solve for x
    x = 16,685,495,160.50/107,911.90
  6. Step 6: Final answer
    x = 154,621.46

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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.