Home / 108,371.10-162,556.65-90,875.10

Finding the Fourth Proportional to 108,371.10, 162,556.65 and 90,875.10

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Solution

The fourth proportional to 108,371.10, 162,556.65 and 90,875.10 is: 136,312.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,371.10 : 162,556.65 = 90,875.10 : x
  2. Step 2: Convert to fraction form
    108,371.10/162,556.65 = 90,875.10/x
  3. Step 3: Cross multiply
    108,371.10x = 162,556.65 × 90,875.10
  4. Step 4: Simplify right side
    108,371.10x = 14,772,351,824.42
  5. Step 5: Solve for x
    x = 14,772,351,824.42/108,371.10
  6. Step 6: Final answer
    x = 136,312.65

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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.