Home / 153,600.30-211,969.36-85,621.58

Finding the Fourth Proportional to 153,600.30, 211,969.36 and 85,621.58

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Solution

The fourth proportional to 153,600.30, 211,969.36 and 85,621.58 is: 118,158.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,600.30 : 211,969.36 = 85,621.58 : x
  2. Step 2: Convert to fraction form
    153,600.30/211,969.36 = 85,621.58/x
  3. Step 3: Cross multiply
    153,600.30x = 211,969.36 × 85,621.58
  4. Step 4: Simplify right side
    153,600.30x = 18,149,151,514.79
  5. Step 5: Solve for x
    x = 18,149,151,514.79/153,600.30
  6. Step 6: Final answer
    x = 118,158.31

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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.