Home / 112,831.50-155,707.47-61,845.87

Finding the Fourth Proportional to 112,831.50, 155,707.47 and 61,845.87

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Solution

The fourth proportional to 112,831.50, 155,707.47 and 61,845.87 is: 85,347.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,831.50 : 155,707.47 = 61,845.87 : x
  2. Step 2: Convert to fraction form
    112,831.50/155,707.47 = 61,845.87/x
  3. Step 3: Cross multiply
    112,831.50x = 155,707.47 × 61,845.87
  4. Step 4: Simplify right side
    112,831.50x = 9,629,863,947.65
  5. Step 5: Solve for x
    x = 9,629,863,947.65/112,831.50
  6. Step 6: Final answer
    x = 85,347.30

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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.