Home / 102,921.70-154,382.55-100,848.10

Finding the Fourth Proportional to 102,921.70, 154,382.55 and 100,848.10

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Solution

The fourth proportional to 102,921.70, 154,382.55 and 100,848.10 is: 151,272.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,921.70 : 154,382.55 = 100,848.10 : x
  2. Step 2: Convert to fraction form
    102,921.70/154,382.55 = 100,848.10/x
  3. Step 3: Cross multiply
    102,921.70x = 154,382.55 × 100,848.10
  4. Step 4: Simplify right side
    102,921.70x = 15,569,186,840.66
  5. Step 5: Solve for x
    x = 15,569,186,840.66/102,921.70
  6. Step 6: Final answer
    x = 151,272.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.