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Finding the Fourth Proportional to 143,130.60, 200,120.40 and 143,130.60

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Solution

The fourth proportional to 143,130.60, 200,120.40 and 143,130.60 is: 200,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,130.60 : 200,120.40 = 143,130.60 : x
  2. Step 2: Convert to fraction form
    143,130.60/200,120.40 = 143,130.60/x
  3. Step 3: Cross multiply
    143,130.60x = 200,120.40 × 143,130.60
  4. Step 4: Simplify right side
    143,130.60x = 28,643,352,924.24
  5. Step 5: Solve for x
    x = 28,643,352,924.24/143,130.60
  6. Step 6: Final answer
    x = 200,120.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.