Home / 168,918.40-253,377.60-155,140.30

Finding the Fourth Proportional to 168,918.40, 253,377.60 and 155,140.30

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Solution

The fourth proportional to 168,918.40, 253,377.60 and 155,140.30 is: 232,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,918.40 : 253,377.60 = 155,140.30 : x
  2. Step 2: Convert to fraction form
    168,918.40/253,377.60 = 155,140.30/x
  3. Step 3: Cross multiply
    168,918.40x = 253,377.60 × 155,140.30
  4. Step 4: Simplify right side
    168,918.40x = 39,309,076,877.28
  5. Step 5: Solve for x
    x = 39,309,076,877.28/168,918.40
  6. Step 6: Final answer
    x = 232,710.45

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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.