Home / 112,828.60-155,698.04-65,097.32

Finding the Fourth Proportional to 112,828.60, 155,698.04 and 65,097.32

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Solution

The fourth proportional to 112,828.60, 155,698.04 and 65,097.32 is: 89,831.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,828.60 : 155,698.04 = 65,097.32 : x
  2. Step 2: Convert to fraction form
    112,828.60/155,698.04 = 65,097.32/x
  3. Step 3: Cross multiply
    112,828.60x = 155,698.04 × 65,097.32
  4. Step 4: Simplify right side
    112,828.60x = 10,135,525,133.25
  5. Step 5: Solve for x
    x = 10,135,525,133.25/112,828.60
  6. Step 6: Final answer
    x = 89,831.17

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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.