Home / 153,025.76-211,175.35-85,040.58

Finding the Fourth Proportional to 153,025.76, 211,175.35 and 85,040.58

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Solution

The fourth proportional to 153,025.76, 211,175.35 and 85,040.58 is: 117,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,025.76 : 211,175.35 = 85,040.58 : x
  2. Step 2: Convert to fraction form
    153,025.76/211,175.35 = 85,040.58/x
  3. Step 3: Cross multiply
    153,025.76x = 211,175.35 × 85,040.58
  4. Step 4: Simplify right side
    153,025.76x = 17,958,475,303.36
  5. Step 5: Solve for x
    x = 17,958,475,303.36/153,025.76
  6. Step 6: Final answer
    x = 117,355.90

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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.