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Finding the Fourth Proportional to 168,021.40, 235,541 and 168,021.40

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Solution

The fourth proportional to 168,021.40, 235,541 and 168,021.40 is: 235,541.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,021.40 : 235,541 = 168,021.40 : x
  2. Step 2: Convert to fraction form
    168,021.40/235,541 = 168,021.40/x
  3. Step 3: Cross multiply
    168,021.40x = 235,541 × 168,021.40
  4. Step 4: Simplify right side
    168,021.40x = 39,575,928,577.40
  5. Step 5: Solve for x
    x = 39,575,928,577.40/168,021.40
  6. Step 6: Final answer
    x = 235,541.00

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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.