Home / 103,934.07-143,428.59-56,187.41

Finding the Fourth Proportional to 103,934.07, 143,428.59 and 56,187.41

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Solution

The fourth proportional to 103,934.07, 143,428.59 and 56,187.41 is: 77,538.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,934.07 : 143,428.59 = 56,187.41 : x
  2. Step 2: Convert to fraction form
    103,934.07/143,428.59 = 56,187.41/x
  3. Step 3: Cross multiply
    103,934.07x = 143,428.59 × 56,187.41
  4. Step 4: Simplify right side
    103,934.07x = 8,058,880,274.91
  5. Step 5: Solve for x
    x = 8,058,880,274.91/103,934.07
  6. Step 6: Final answer
    x = 77,538.39

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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.