Home / 110,172.90-152,029.30-61,111.56

Finding the Fourth Proportional to 110,172.90, 152,029.30 and 61,111.56

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Solution

The fourth proportional to 110,172.90, 152,029.30 and 61,111.56 is: 84,328.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,172.90 : 152,029.30 = 61,111.56 : x
  2. Step 2: Convert to fraction form
    110,172.90/152,029.30 = 61,111.56/x
  3. Step 3: Cross multiply
    110,172.90x = 152,029.30 × 61,111.56
  4. Step 4: Simplify right side
    110,172.90x = 9,290,747,688.71
  5. Step 5: Solve for x
    x = 9,290,747,688.71/110,172.90
  6. Step 6: Final answer
    x = 84,328.79

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1.5x scale

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.