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Finding the Fourth Proportional to 143,228.40, 214,842.60 and 98,127.60

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Solution

The fourth proportional to 143,228.40, 214,842.60 and 98,127.60 is: 147,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,228.40 : 214,842.60 = 98,127.60 : x
  2. Step 2: Convert to fraction form
    143,228.40/214,842.60 = 98,127.60/x
  3. Step 3: Cross multiply
    143,228.40x = 214,842.60 × 98,127.60
  4. Step 4: Simplify right side
    143,228.40x = 21,081,988,715.76
  5. Step 5: Solve for x
    x = 21,081,988,715.76/143,228.40
  6. Step 6: Final answer
    x = 147,191.40

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1.5x scale

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.