Home / 145,212.40-217,718.70-73,997.20

Finding the Fourth Proportional to 145,212.40, 217,718.70 and 73,997.20

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Solution

The fourth proportional to 145,212.40, 217,718.70 and 73,997.20 is: 110,944.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,212.40 : 217,718.70 = 73,997.20 : x
  2. Step 2: Convert to fraction form
    145,212.40/217,718.70 = 73,997.20/x
  3. Step 3: Cross multiply
    145,212.40x = 217,718.70 × 73,997.20
  4. Step 4: Simplify right side
    145,212.40x = 16,110,574,187.64
  5. Step 5: Solve for x
    x = 16,110,574,187.64/145,212.40
  6. Step 6: Final answer
    x = 110,944.89

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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.