Home / 103,822.11-143,274.47-56,075.49

Finding the Fourth Proportional to 103,822.11, 143,274.47 and 56,075.49

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Solution

The fourth proportional to 103,822.11, 143,274.47 and 56,075.49 is: 77,384.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,822.11 : 143,274.47 = 56,075.49 : x
  2. Step 2: Convert to fraction form
    103,822.11/143,274.47 = 56,075.49/x
  3. Step 3: Cross multiply
    103,822.11x = 143,274.47 × 56,075.49
  4. Step 4: Simplify right side
    103,822.11x = 8,034,185,829.36
  5. Step 5: Solve for x
    x = 8,034,185,829.36/103,822.11
  6. Step 6: Final answer
    x = 77,384.15

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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.