Home / 104,289.77-143,920.98-61,271.06

Finding the Fourth Proportional to 104,289.77, 143,920.98 and 61,271.06

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Solution

The fourth proportional to 104,289.77, 143,920.98 and 61,271.06 is: 84,554.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,289.77 : 143,920.98 = 61,271.06 : x
  2. Step 2: Convert to fraction form
    104,289.77/143,920.98 = 61,271.06/x
  3. Step 3: Cross multiply
    104,289.77x = 143,920.98 × 61,271.06
  4. Step 4: Simplify right side
    104,289.77x = 8,818,190,281.23
  5. Step 5: Solve for x
    x = 8,818,190,281.23/104,289.77
  6. Step 6: Final answer
    x = 84,554.70

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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.