Home / 105,351.72-145,384.36-57,604.56

Finding the Fourth Proportional to 105,351.72, 145,384.36 and 57,604.56

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Solution

The fourth proportional to 105,351.72, 145,384.36 and 57,604.56 is: 79,493.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,351.72 : 145,384.36 = 57,604.56 : x
  2. Step 2: Convert to fraction form
    105,351.72/145,384.36 = 57,604.56/x
  3. Step 3: Cross multiply
    105,351.72x = 145,384.36 × 57,604.56
  4. Step 4: Simplify right side
    105,351.72x = 8,374,802,088.68
  5. Step 5: Solve for x
    x = 8,374,802,088.68/105,351.72
  6. Step 6: Final answer
    x = 79,493.74

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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.