Home / 105,254.94-145,251.53-57,508.62

Finding the Fourth Proportional to 105,254.94, 145,251.53 and 57,508.62

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Solution

The fourth proportional to 105,254.94, 145,251.53 and 57,508.62 is: 79,361.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,254.94 : 145,251.53 = 57,508.62 : x
  2. Step 2: Convert to fraction form
    105,254.94/145,251.53 = 57,508.62/x
  3. Step 3: Cross multiply
    105,254.94x = 145,251.53 × 57,508.62
  4. Step 4: Simplify right side
    105,254.94x = 8,353,214,426.61
  5. Step 5: Solve for x
    x = 8,353,214,426.61/105,254.94
  6. Step 6: Final answer
    x = 79,361.73

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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.