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Finding the Fourth Proportional to 108,903.39, 163,361.22 and 38,782.71

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Solution

The fourth proportional to 108,903.39, 163,361.22 and 38,782.71 is: 58,176.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,903.39 : 163,361.22 = 38,782.71 : x
  2. Step 2: Convert to fraction form
    108,903.39/163,361.22 = 38,782.71/x
  3. Step 3: Cross multiply
    108,903.39x = 163,361.22 × 38,782.71
  4. Step 4: Simplify right side
    108,903.39x = 6,335,590,820.51
  5. Step 5: Solve for x
    x = 6,335,590,820.51/108,903.39
  6. Step 6: Final answer
    x = 58,176.25

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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.