Home / 105,197.92-157,798.32-30,319.36

Finding the Fourth Proportional to 105,197.92, 157,798.32 and 30,319.36

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Solution

The fourth proportional to 105,197.92, 157,798.32 and 30,319.36 is: 45,479.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,197.92 : 157,798.32 = 30,319.36 : x
  2. Step 2: Convert to fraction form
    105,197.92/157,798.32 = 30,319.36/x
  3. Step 3: Cross multiply
    105,197.92x = 157,798.32 × 30,319.36
  4. Step 4: Simplify right side
    105,197.92x = 4,784,344,071.48
  5. Step 5: Solve for x
    x = 4,784,344,071.48/105,197.92
  6. Step 6: Final answer
    x = 45,479.46

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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.