Home / 153,015.03-211,147.29-85,027.70

Finding the Fourth Proportional to 153,015.03, 211,147.29 and 85,027.70

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Solution

The fourth proportional to 153,015.03, 211,147.29 and 85,027.70 is: 117,330.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,015.03 : 211,147.29 = 85,027.70 : x
  2. Step 2: Convert to fraction form
    153,015.03/211,147.29 = 85,027.70/x
  3. Step 3: Cross multiply
    153,015.03x = 211,147.29 × 85,027.70
  4. Step 4: Simplify right side
    153,015.03x = 17,953,368,429.93
  5. Step 5: Solve for x
    x = 17,953,368,429.93/153,015.03
  6. Step 6: Final answer
    x = 117,330.75

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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.