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Finding the Fourth Proportional to 108,681.48, 163,022.31 and 87,522.30

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Solution

The fourth proportional to 108,681.48, 163,022.31 and 87,522.30 is: 131,283.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,681.48 : 163,022.31 = 87,522.30 : x
  2. Step 2: Convert to fraction form
    108,681.48/163,022.31 = 87,522.30/x
  3. Step 3: Cross multiply
    108,681.48x = 163,022.31 × 87,522.30
  4. Step 4: Simplify right side
    108,681.48x = 14,268,087,522.51
  5. Step 5: Solve for x
    x = 14,268,087,522.51/108,681.48
  6. Step 6: Final answer
    x = 131,283.52

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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.