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Finding the Fourth Proportional to 152,011.56, 209,775.62 and 84,943.56

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Solution

The fourth proportional to 152,011.56, 209,775.62 and 84,943.56 is: 117,221.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,011.56 : 209,775.62 = 84,943.56 : x
  2. Step 2: Convert to fraction form
    152,011.56/209,775.62 = 84,943.56/x
  3. Step 3: Cross multiply
    152,011.56x = 209,775.62 × 84,943.56
  4. Step 4: Simplify right side
    152,011.56x = 17,819,087,964.01
  5. Step 5: Solve for x
    x = 17,819,087,964.01/152,011.56
  6. Step 6: Final answer
    x = 117,221.93

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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.