Home / 128,522.40-177,371.04-94,685.60

Finding the Fourth Proportional to 128,522.40, 177,371.04 and 94,685.60

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Solution

The fourth proportional to 128,522.40, 177,371.04 and 94,685.60 is: 130,673.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,522.40 : 177,371.04 = 94,685.60 : x
  2. Step 2: Convert to fraction form
    128,522.40/177,371.04 = 94,685.60/x
  3. Step 3: Cross multiply
    128,522.40x = 177,371.04 × 94,685.60
  4. Step 4: Simplify right side
    128,522.40x = 16,794,483,345.02
  5. Step 5: Solve for x
    x = 16,794,483,345.02/128,522.40
  6. Step 6: Final answer
    x = 130,673.59

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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.