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Finding the Fourth Proportional to 100,364.96, 150,572.73 and 70,840.46

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Solution

The fourth proportional to 100,364.96, 150,572.73 and 70,840.46 is: 106,278.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,364.96 : 150,572.73 = 70,840.46 : x
  2. Step 2: Convert to fraction form
    100,364.96/150,572.73 = 70,840.46/x
  3. Step 3: Cross multiply
    100,364.96x = 150,572.73 × 70,840.46
  4. Step 4: Simplify right side
    100,364.96x = 10,666,640,703.79
  5. Step 5: Solve for x
    x = 10,666,640,703.79/100,364.96
  6. Step 6: Final answer
    x = 106,278.54

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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.