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Finding the Fourth Proportional to 141,666.40, 212,499.60 and 97,429.60

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Solution

The fourth proportional to 141,666.40, 212,499.60 and 97,429.60 is: 146,144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,666.40 : 212,499.60 = 97,429.60 : x
  2. Step 2: Convert to fraction form
    141,666.40/212,499.60 = 97,429.60/x
  3. Step 3: Cross multiply
    141,666.40x = 212,499.60 × 97,429.60
  4. Step 4: Simplify right side
    141,666.40x = 20,703,751,028.16
  5. Step 5: Solve for x
    x = 20,703,751,028.16/141,666.40
  6. Step 6: Final answer
    x = 146,144.40

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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.