Home / 147,831.50-203,767.89-115,509.62

Finding the Fourth Proportional to 147,831.50, 203,767.89 and 115,509.62

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Solution

The fourth proportional to 147,831.50, 203,767.89 and 115,509.62 is: 159,216.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,831.50 : 203,767.89 = 115,509.62 : x
  2. Step 2: Convert to fraction form
    147,831.50/203,767.89 = 115,509.62/x
  3. Step 3: Cross multiply
    147,831.50x = 203,767.89 × 115,509.62
  4. Step 4: Simplify right side
    147,831.50x = 23,537,151,542.10
  5. Step 5: Solve for x
    x = 23,537,151,542.10/147,831.50
  6. Step 6: Final answer
    x = 159,216.08

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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.