Home / 104,320.56-143,962.36-56,574

Finding the Fourth Proportional to 104,320.56, 143,962.36 and 56,574

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Solution

The fourth proportional to 104,320.56, 143,962.36 and 56,574 is: 78,072.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,320.56 : 143,962.36 = 56,574 : x
  2. Step 2: Convert to fraction form
    104,320.56/143,962.36 = 56,574/x
  3. Step 3: Cross multiply
    104,320.56x = 143,962.36 × 56,574
  4. Step 4: Simplify right side
    104,320.56x = 8,144,526,554.64
  5. Step 5: Solve for x
    x = 8,144,526,554.64/104,320.56
  6. Step 6: Final answer
    x = 78,072.11

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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.