Home / 108,648.79-162,940.04-75,130.28

Finding the Fourth Proportional to 108,648.79, 162,940.04 and 75,130.28

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Solution

The fourth proportional to 108,648.79, 162,940.04 and 75,130.28 is: 112,672.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,648.79 : 162,940.04 = 75,130.28 : x
  2. Step 2: Convert to fraction form
    108,648.79/162,940.04 = 75,130.28/x
  3. Step 3: Cross multiply
    108,648.79x = 162,940.04 × 75,130.28
  4. Step 4: Simplify right side
    108,648.79x = 12,241,731,764.32
  5. Step 5: Solve for x
    x = 12,241,731,764.32/108,648.79
  6. Step 6: Final answer
    x = 112,672.51

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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.