Home / 108,274.24-149,445.52-86,679.64

Finding the Fourth Proportional to 108,274.24, 149,445.52 and 86,679.64

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Solution

The fourth proportional to 108,274.24, 149,445.52 and 86,679.64 is: 119,639.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,274.24 : 149,445.52 = 86,679.64 : x
  2. Step 2: Convert to fraction form
    108,274.24/149,445.52 = 86,679.64/x
  3. Step 3: Cross multiply
    108,274.24x = 149,445.52 × 86,679.64
  4. Step 4: Simplify right side
    108,274.24x = 12,953,883,873.21
  5. Step 5: Solve for x
    x = 12,953,883,873.21/108,274.24
  6. Step 6: Final answer
    x = 119,639.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.