Home / 103,968.12-143,476.01-56,221.47

Finding the Fourth Proportional to 103,968.12, 143,476.01 and 56,221.47

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Solution

The fourth proportional to 103,968.12, 143,476.01 and 56,221.47 is: 77,585.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,968.12 : 143,476.01 = 56,221.47 : x
  2. Step 2: Convert to fraction form
    103,968.12/143,476.01 = 56,221.47/x
  3. Step 3: Cross multiply
    103,968.12x = 143,476.01 × 56,221.47
  4. Step 4: Simplify right side
    103,968.12x = 8,066,432,191.93
  5. Step 5: Solve for x
    x = 8,066,432,191.93/103,968.12
  6. Step 6: Final answer
    x = 77,585.63

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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.