Home / 103,623.71-142,990.58-58,300.74

Finding the Fourth Proportional to 103,623.71, 142,990.58 and 58,300.74

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Solution

The fourth proportional to 103,623.71, 142,990.58 and 58,300.74 is: 80,449.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.71 : 142,990.58 = 58,300.74 : x
  2. Step 2: Convert to fraction form
    103,623.71/142,990.58 = 58,300.74/x
  3. Step 3: Cross multiply
    103,623.71x = 142,990.58 × 58,300.74
  4. Step 4: Simplify right side
    103,623.71x = 8,336,456,335.53
  5. Step 5: Solve for x
    x = 8,336,456,335.53/103,623.71
  6. Step 6: Final answer
    x = 80,449.32

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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.