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Finding the Fourth Proportional to 108,820.60, 150,242.45 and 74,818.22

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Solution

The fourth proportional to 108,820.60, 150,242.45 and 74,818.22 is: 103,297.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,820.60 : 150,242.45 = 74,818.22 : x
  2. Step 2: Convert to fraction form
    108,820.60/150,242.45 = 74,818.22/x
  3. Step 3: Cross multiply
    108,820.60x = 150,242.45 × 74,818.22
  4. Step 4: Simplify right side
    108,820.60x = 11,240,871,552.14
  5. Step 5: Solve for x
    x = 11,240,871,552.14/108,820.60
  6. Step 6: Final answer
    x = 103,297.28

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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.