Home / 103,623.56-142,999.80-58,911.56

Finding the Fourth Proportional to 103,623.56, 142,999.80 and 58,911.56

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Solution

The fourth proportional to 103,623.56, 142,999.80 and 58,911.56 is: 81,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.56 : 142,999.80 = 58,911.56 : x
  2. Step 2: Convert to fraction form
    103,623.56/142,999.80 = 58,911.56/x
  3. Step 3: Cross multiply
    103,623.56x = 142,999.80 × 58,911.56
  4. Step 4: Simplify right side
    103,623.56x = 8,424,341,297.69
  5. Step 5: Solve for x
    x = 8,424,341,297.69/103,623.56
  6. Step 6: Final answer
    x = 81,297.55

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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.