Home / 235,668.24-325,225.62-128,238.48

Finding the Fourth Proportional to 235,668.24, 325,225.62 and 128,238.48

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Solution

The fourth proportional to 235,668.24, 325,225.62 and 128,238.48 is: 176,970.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,668.24 : 325,225.62 = 128,238.48 : x
  2. Step 2: Convert to fraction form
    235,668.24/325,225.62 = 128,238.48/x
  3. Step 3: Cross multiply
    235,668.24x = 325,225.62 × 128,238.48
  4. Step 4: Simplify right side
    235,668.24x = 41,706,439,165.86
  5. Step 5: Solve for x
    x = 41,706,439,165.86/235,668.24
  6. Step 6: Final answer
    x = 176,970.98

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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.