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Finding the Fourth Proportional to 103,254.48, 142,541.24 and 69,250.55

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Solution

The fourth proportional to 103,254.48, 142,541.24 and 69,250.55 is: 95,599.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,254.48 : 142,541.24 = 69,250.55 : x
  2. Step 2: Convert to fraction form
    103,254.48/142,541.24 = 69,250.55/x
  3. Step 3: Cross multiply
    103,254.48x = 142,541.24 × 69,250.55
  4. Step 4: Simplify right side
    103,254.48x = 9,871,059,267.68
  5. Step 5: Solve for x
    x = 9,871,059,267.68/103,254.48
  6. Step 6: Final answer
    x = 95,599.33

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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.