Home / 111,109.86-153,330.51-60,121.47

Finding the Fourth Proportional to 111,109.86, 153,330.51 and 60,121.47

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Solution

The fourth proportional to 111,109.86, 153,330.51 and 60,121.47 is: 82,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,109.86 : 153,330.51 = 60,121.47 : x
  2. Step 2: Convert to fraction form
    111,109.86/153,330.51 = 60,121.47/x
  3. Step 3: Cross multiply
    111,109.86x = 153,330.51 × 60,121.47
  4. Step 4: Simplify right side
    111,109.86x = 9,218,455,657.05
  5. Step 5: Solve for x
    x = 9,218,455,657.05/111,109.86
  6. Step 6: Final answer
    x = 82,967.04

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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.