Home / 153,071.03-211,272.30-85,111.83

Finding the Fourth Proportional to 153,071.03, 211,272.30 and 85,111.83

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Solution

The fourth proportional to 153,071.03, 211,272.30 and 85,111.83 is: 117,473.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,071.03 : 211,272.30 = 85,111.83 : x
  2. Step 2: Convert to fraction form
    153,071.03/211,272.30 = 85,111.83/x
  3. Step 3: Cross multiply
    153,071.03x = 211,272.30 × 85,111.83
  4. Step 4: Simplify right side
    153,071.03x = 17,981,772,081.31
  5. Step 5: Solve for x
    x = 17,981,772,081.31/153,071.03
  6. Step 6: Final answer
    x = 117,473.38

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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.