Home / 104,075.31-143,623.88-56,328.65

Finding the Fourth Proportional to 104,075.31, 143,623.88 and 56,328.65

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Solution

The fourth proportional to 104,075.31, 143,623.88 and 56,328.65 is: 77,733.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,075.31 : 143,623.88 = 56,328.65 : x
  2. Step 2: Convert to fraction form
    104,075.31/143,623.88 = 56,328.65/x
  3. Step 3: Cross multiply
    104,075.31x = 143,623.88 × 56,328.65
  4. Step 4: Simplify right side
    104,075.31x = 8,090,138,550.04
  5. Step 5: Solve for x
    x = 8,090,138,550.04/104,075.31
  6. Step 6: Final answer
    x = 77,733.50

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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.