Home / 170,651.86-235,564.14-128,332.60

Finding the Fourth Proportional to 170,651.86, 235,564.14 and 128,332.60

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Solution

The fourth proportional to 170,651.86, 235,564.14 and 128,332.60 is: 177,147.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,651.86 : 235,564.14 = 128,332.60 : x
  2. Step 2: Convert to fraction form
    170,651.86/235,564.14 = 128,332.60/x
  3. Step 3: Cross multiply
    170,651.86x = 235,564.14 × 128,332.60
  4. Step 4: Simplify right side
    170,651.86x = 30,230,558,552.96
  5. Step 5: Solve for x
    x = 30,230,558,552.96/170,651.86
  6. Step 6: Final answer
    x = 177,147.55

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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.