Home / 105,289.64-157,911.21-30,393.51

Finding the Fourth Proportional to 105,289.64, 157,911.21 and 30,393.51

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Solution

The fourth proportional to 105,289.64, 157,911.21 and 30,393.51 is: 45,583.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,289.64 : 157,911.21 = 30,393.51 : x
  2. Step 2: Convert to fraction form
    105,289.64/157,911.21 = 30,393.51/x
  3. Step 3: Cross multiply
    105,289.64x = 157,911.21 × 30,393.51
  4. Step 4: Simplify right side
    105,289.64x = 4,799,475,788.28
  5. Step 5: Solve for x
    x = 4,799,475,788.28/105,289.64
  6. Step 6: Final answer
    x = 45,583.55

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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.