Home / 135,812.56-204,050.96-128,259.20

Finding the Fourth Proportional to 135,812.56, 204,050.96 and 128,259.20

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Solution

The fourth proportional to 135,812.56, 204,050.96 and 128,259.20 is: 192,702.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,812.56 : 204,050.96 = 128,259.20 : x
  2. Step 2: Convert to fraction form
    135,812.56/204,050.96 = 128,259.20/x
  3. Step 3: Cross multiply
    135,812.56x = 204,050.96 × 128,259.20
  4. Step 4: Simplify right side
    135,812.56x = 26,171,412,888.83
  5. Step 5: Solve for x
    x = 26,171,412,888.83/135,812.56
  6. Step 6: Final answer
    x = 192,702.45

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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.