Home / 128,712.24-177,336.54-96,300.90

Finding the Fourth Proportional to 128,712.24, 177,336.54 and 96,300.90

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Solution

The fourth proportional to 128,712.24, 177,336.54 and 96,300.90 is: 132,681.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,712.24 : 177,336.54 = 96,300.90 : x
  2. Step 2: Convert to fraction form
    128,712.24/177,336.54 = 96,300.90/x
  3. Step 3: Cross multiply
    128,712.24x = 177,336.54 × 96,300.90
  4. Step 4: Simplify right side
    128,712.24x = 17,077,668,404.89
  5. Step 5: Solve for x
    x = 17,077,668,404.89/128,712.24
  6. Step 6: Final answer
    x = 132,681.00

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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.