Home / 128,334.96-177,103.42-70,971.32

Finding the Fourth Proportional to 128,334.96, 177,103.42 and 70,971.32

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Solution

The fourth proportional to 128,334.96, 177,103.42 and 70,971.32 is: 97,941.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,334.96 : 177,103.42 = 70,971.32 : x
  2. Step 2: Convert to fraction form
    128,334.96/177,103.42 = 70,971.32/x
  3. Step 3: Cross multiply
    128,334.96x = 177,103.42 × 70,971.32
  4. Step 4: Simplify right side
    128,334.96x = 12,569,263,759.24
  5. Step 5: Solve for x
    x = 12,569,263,759.24/128,334.96
  6. Step 6: Final answer
    x = 97,941.07

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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.