Home / 152,183.30-210,011.81-85,115.30

Finding the Fourth Proportional to 152,183.30, 210,011.81 and 85,115.30

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Solution

The fourth proportional to 152,183.30, 210,011.81 and 85,115.30 is: 117,458.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,183.30 : 210,011.81 = 85,115.30 : x
  2. Step 2: Convert to fraction form
    152,183.30/210,011.81 = 85,115.30/x
  3. Step 3: Cross multiply
    152,183.30x = 210,011.81 × 85,115.30
  4. Step 4: Simplify right side
    152,183.30x = 17,875,216,736.06
  5. Step 5: Solve for x
    x = 17,875,216,736.06/152,183.30
  6. Step 6: Final answer
    x = 117,458.47

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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.