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Finding the Fourth Proportional to 103,254.55, 154,883.53 and 28,374.23

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Solution

The fourth proportional to 103,254.55, 154,883.53 and 28,374.23 is: 42,561.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,254.55 : 154,883.53 = 28,374.23 : x
  2. Step 2: Convert to fraction form
    103,254.55/154,883.53 = 28,374.23/x
  3. Step 3: Cross multiply
    103,254.55x = 154,883.53 × 28,374.23
  4. Step 4: Simplify right side
    103,254.55x = 4,394,700,903.43
  5. Step 5: Solve for x
    x = 4,394,700,903.43/103,254.55
  6. Step 6: Final answer
    x = 42,561.82

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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.