Home / 153,434.14-211,739.18-85,464.16

Finding the Fourth Proportional to 153,434.14, 211,739.18 and 85,464.16

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Solution

The fourth proportional to 153,434.14, 211,739.18 and 85,464.16 is: 117,940.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,434.14 : 211,739.18 = 85,464.16 : x
  2. Step 2: Convert to fraction form
    153,434.14/211,739.18 = 85,464.16/x
  3. Step 3: Cross multiply
    153,434.14x = 211,739.18 × 85,464.16
  4. Step 4: Simplify right side
    153,434.14x = 18,096,111,157.79
  5. Step 5: Solve for x
    x = 18,096,111,157.79/153,434.14
  6. Step 6: Final answer
    x = 117,940.58

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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.