Home / 153,139.36-211,383.93-104,770.21

Finding the Fourth Proportional to 153,139.36, 211,383.93 and 104,770.21

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Solution

The fourth proportional to 153,139.36, 211,383.93 and 104,770.21 is: 144,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,139.36 : 211,383.93 = 104,770.21 : x
  2. Step 2: Convert to fraction form
    153,139.36/211,383.93 = 104,770.21/x
  3. Step 3: Cross multiply
    153,139.36x = 211,383.93 × 104,770.21
  4. Step 4: Simplify right side
    153,139.36x = 22,146,738,736.73
  5. Step 5: Solve for x
    x = 22,146,738,736.73/153,139.36
  6. Step 6: Final answer
    x = 144,618.20

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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.