Home / 101,400.24-139,933.26-56,075.88

Finding the Fourth Proportional to 101,400.24, 139,933.26 and 56,075.88

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Solution

The fourth proportional to 101,400.24, 139,933.26 and 56,075.88 is: 77,385.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,400.24 : 139,933.26 = 56,075.88 : x
  2. Step 2: Convert to fraction form
    101,400.24/139,933.26 = 56,075.88/x
  3. Step 3: Cross multiply
    101,400.24x = 139,933.26 × 56,075.88
  4. Step 4: Simplify right side
    101,400.24x = 7,846,880,695.77
  5. Step 5: Solve for x
    x = 7,846,880,695.77/101,400.24
  6. Step 6: Final answer
    x = 77,385.23

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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.