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Finding the Fourth Proportional to 101,558.50, 140,149.02 and 56,235.51

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Solution

The fourth proportional to 101,558.50, 140,149.02 and 56,235.51 is: 77,604.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,558.50 : 140,149.02 = 56,235.51 : x
  2. Step 2: Convert to fraction form
    101,558.50/140,149.02 = 56,235.51/x
  3. Step 3: Cross multiply
    101,558.50x = 140,149.02 × 56,235.51
  4. Step 4: Simplify right side
    101,558.50x = 7,881,351,457.81
  5. Step 5: Solve for x
    x = 7,881,351,457.81/101,558.50
  6. Step 6: Final answer
    x = 77,604.05

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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.