Home / 104,831.12-144,662.64-57,085.04

Finding the Fourth Proportional to 104,831.12, 144,662.64 and 57,085.04

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Solution

The fourth proportional to 104,831.12, 144,662.64 and 57,085.04 is: 78,775.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,831.12 : 144,662.64 = 57,085.04 : x
  2. Step 2: Convert to fraction form
    104,831.12/144,662.64 = 57,085.04/x
  3. Step 3: Cross multiply
    104,831.12x = 144,662.64 × 57,085.04
  4. Step 4: Simplify right side
    104,831.12x = 8,258,072,590.91
  5. Step 5: Solve for x
    x = 8,258,072,590.91/104,831.12
  6. Step 6: Final answer
    x = 78,775.01

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1.5x scale

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.