Home / 128,322.65-177,084.22-73,885.52

Finding the Fourth Proportional to 128,322.65, 177,084.22 and 73,885.52

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Solution

The fourth proportional to 128,322.65, 177,084.22 and 73,885.52 is: 101,961.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,322.65 : 177,084.22 = 73,885.52 : x
  2. Step 2: Convert to fraction form
    128,322.65/177,084.22 = 73,885.52/x
  3. Step 3: Cross multiply
    128,322.65x = 177,084.22 × 73,885.52
  4. Step 4: Simplify right side
    128,322.65x = 13,083,959,678.49
  5. Step 5: Solve for x
    x = 13,083,959,678.49/128,322.65
  6. Step 6: Final answer
    x = 101,961.42

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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.