Home / 105,169.68-157,730.64-30,273.06

Finding the Fourth Proportional to 105,169.68, 157,730.64 and 30,273.06

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Solution

The fourth proportional to 105,169.68, 157,730.64 and 30,273.06 is: 45,402.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,169.68 : 157,730.64 = 30,273.06 : x
  2. Step 2: Convert to fraction form
    105,169.68/157,730.64 = 30,273.06/x
  3. Step 3: Cross multiply
    105,169.68x = 157,730.64 × 30,273.06
  4. Step 4: Simplify right side
    105,169.68x = 4,774,989,128.56
  5. Step 5: Solve for x
    x = 4,774,989,128.56/105,169.68
  6. Step 6: Final answer
    x = 45,402.72

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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.