Home / 103,968.81-143,477.01-56,222.19

Finding the Fourth Proportional to 103,968.81, 143,477.01 and 56,222.19

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Solution

The fourth proportional to 103,968.81, 143,477.01 and 56,222.19 is: 77,586.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,968.81 : 143,477.01 = 56,222.19 : x
  2. Step 2: Convert to fraction form
    103,968.81/143,477.01 = 56,222.19/x
  3. Step 3: Cross multiply
    103,968.81x = 143,477.01 × 56,222.19
  4. Step 4: Simplify right side
    103,968.81x = 8,066,591,716.85
  5. Step 5: Solve for x
    x = 8,066,591,716.85/103,968.81
  6. Step 6: Final answer
    x = 77,586.65

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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.