Home / 103,967.12-143,474.63-56,220.47

Finding the Fourth Proportional to 103,967.12, 143,474.63 and 56,220.47

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Solution

The fourth proportional to 103,967.12, 143,474.63 and 56,220.47 is: 77,584.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,967.12 : 143,474.63 = 56,220.47 : x
  2. Step 2: Convert to fraction form
    103,967.12/143,474.63 = 56,220.47/x
  3. Step 3: Cross multiply
    103,967.12x = 143,474.63 × 56,220.47
  4. Step 4: Simplify right side
    103,967.12x = 8,066,211,131.68
  5. Step 5: Solve for x
    x = 8,066,211,131.68/103,967.12
  6. Step 6: Final answer
    x = 77,584.25

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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.