Home / 93,828.12-140,643.74-68,830.70

Finding the Fourth Proportional to 93,828.12, 140,643.74 and 68,830.70

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Solution

The fourth proportional to 93,828.12, 140,643.74 and 68,830.70 is: 103,173.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,828.12 : 140,643.74 = 68,830.70 : x
  2. Step 2: Convert to fraction form
    93,828.12/140,643.74 = 68,830.70/x
  3. Step 3: Cross multiply
    93,828.12x = 140,643.74 × 68,830.70
  4. Step 4: Simplify right side
    93,828.12x = 9,680,607,074.82
  5. Step 5: Solve for x
    x = 9,680,607,074.82/93,828.12
  6. Step 6: Final answer
    x = 103,173.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.