Home / 118,635.43-163,728.06-70,887.77

Finding the Fourth Proportional to 118,635.43, 163,728.06 and 70,887.77

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Solution

The fourth proportional to 118,635.43, 163,728.06 and 70,887.77 is: 97,831.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,635.43 : 163,728.06 = 70,887.77 : x
  2. Step 2: Convert to fraction form
    118,635.43/163,728.06 = 70,887.77/x
  3. Step 3: Cross multiply
    118,635.43x = 163,728.06 × 70,887.77
  4. Step 4: Simplify right side
    118,635.43x = 11,606,317,059.83
  5. Step 5: Solve for x
    x = 11,606,317,059.83/118,635.43
  6. Step 6: Final answer
    x = 97,831.79

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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.