Home / 128,148.49-176,843.07-70,004.52

Finding the Fourth Proportional to 128,148.49, 176,843.07 and 70,004.52

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Solution

The fourth proportional to 128,148.49, 176,843.07 and 70,004.52 is: 96,605.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,148.49 : 176,843.07 = 70,004.52 : x
  2. Step 2: Convert to fraction form
    128,148.49/176,843.07 = 70,004.52/x
  3. Step 3: Cross multiply
    128,148.49x = 176,843.07 × 70,004.52
  4. Step 4: Simplify right side
    128,148.49x = 12,379,814,493.19
  5. Step 5: Solve for x
    x = 12,379,814,493.19/128,148.49
  6. Step 6: Final answer
    x = 96,605.23

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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.