Home / 100,824.63-139,137.98-56,123.19

Finding the Fourth Proportional to 100,824.63, 139,137.98 and 56,123.19

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Solution

The fourth proportional to 100,824.63, 139,137.98 and 56,123.19 is: 77,450.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,824.63 : 139,137.98 = 56,123.19 : x
  2. Step 2: Convert to fraction form
    100,824.63/139,137.98 = 56,123.19/x
  3. Step 3: Cross multiply
    100,824.63x = 139,137.98 × 56,123.19
  4. Step 4: Simplify right side
    100,824.63x = 7,808,866,732.37
  5. Step 5: Solve for x
    x = 7,808,866,732.37/100,824.63
  6. Step 6: Final answer
    x = 77,450.00

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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.