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Finding the Fourth Proportional to 143,248.40, 214,969.80 and 93,206.60

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Solution

The fourth proportional to 143,248.40, 214,969.80 and 93,206.60 is: 139,873.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,248.40 : 214,969.80 = 93,206.60 : x
  2. Step 2: Convert to fraction form
    143,248.40/214,969.80 = 93,206.60/x
  3. Step 3: Cross multiply
    143,248.40x = 214,969.80 × 93,206.60
  4. Step 4: Simplify right side
    143,248.40x = 20,036,604,160.68
  5. Step 5: Solve for x
    x = 20,036,604,160.68/143,248.40
  6. Step 6: Final answer
    x = 139,873.14

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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.