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Finding the Fourth Proportional to 143,242.40, 214,960.80 and 93,200.60

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Solution

The fourth proportional to 143,242.40, 214,960.80 and 93,200.60 is: 139,864.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,242.40 : 214,960.80 = 93,200.60 : x
  2. Step 2: Convert to fraction form
    143,242.40/214,960.80 = 93,200.60/x
  3. Step 3: Cross multiply
    143,242.40x = 214,960.80 × 93,200.60
  4. Step 4: Simplify right side
    143,242.40x = 20,034,475,536.48
  5. Step 5: Solve for x
    x = 20,034,475,536.48/143,242.40
  6. Step 6: Final answer
    x = 139,864.14

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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.