Home / 121,657.76-166,668.34-117,109.26

Finding the Fourth Proportional to 121,657.76, 166,668.34 and 117,109.26

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Solution

The fourth proportional to 121,657.76, 166,668.34 and 117,109.26 is: 160,437.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,657.76 : 166,668.34 = 117,109.26 : x
  2. Step 2: Convert to fraction form
    121,657.76/166,668.34 = 117,109.26/x
  3. Step 3: Cross multiply
    121,657.76x = 166,668.34 × 117,109.26
  4. Step 4: Simplify right side
    121,657.76x = 19,518,405,962.83
  5. Step 5: Solve for x
    x = 19,518,405,962.83/121,657.76
  6. Step 6: Final answer
    x = 160,437.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.