Home / 108,541.53-162,531.89-74,911.32

Finding the Fourth Proportional to 108,541.53, 162,531.89 and 74,911.32

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Solution

The fourth proportional to 108,541.53, 162,531.89 and 74,911.32 is: 112,173.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,541.53 : 162,531.89 = 74,911.32 : x
  2. Step 2: Convert to fraction form
    108,541.53/162,531.89 = 74,911.32/x
  3. Step 3: Cross multiply
    108,541.53x = 162,531.89 × 74,911.32
  4. Step 4: Simplify right side
    108,541.53x = 12,175,478,421.99
  5. Step 5: Solve for x
    x = 12,175,478,421.99/108,541.53
  6. Step 6: Final answer
    x = 112,173.45

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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.