Home / 103,968.29-143,476.34-56,221.62

Finding the Fourth Proportional to 103,968.29, 143,476.34 and 56,221.62

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Solution

The fourth proportional to 103,968.29, 143,476.34 and 56,221.62 is: 77,585.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,968.29 : 143,476.34 = 56,221.62 : x
  2. Step 2: Convert to fraction form
    103,968.29/143,476.34 = 56,221.62/x
  3. Step 3: Cross multiply
    103,968.29x = 143,476.34 × 56,221.62
  4. Step 4: Simplify right side
    103,968.29x = 8,066,471,985.36
  5. Step 5: Solve for x
    x = 8,066,471,985.36/103,968.29
  6. Step 6: Final answer
    x = 77,585.89

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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.