Home / 103,424.67-142,718.58-58,100.31

Finding the Fourth Proportional to 103,424.67, 142,718.58 and 58,100.31

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Solution

The fourth proportional to 103,424.67, 142,718.58 and 58,100.31 is: 80,174.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,424.67 : 142,718.58 = 58,100.31 : x
  2. Step 2: Convert to fraction form
    103,424.67/142,718.58 = 58,100.31/x
  3. Step 3: Cross multiply
    103,424.67x = 142,718.58 × 58,100.31
  4. Step 4: Simplify right side
    103,424.67x = 8,291,993,740.76
  5. Step 5: Solve for x
    x = 8,291,993,740.76/103,424.67
  6. Step 6: Final answer
    x = 80,174.23

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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.