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Finding the Fourth Proportional to 130,665.60, 195,796.80 and 97,228.80

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Solution

The fourth proportional to 130,665.60, 195,796.80 and 97,228.80 is: 145,693.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,665.60 : 195,796.80 = 97,228.80 : x
  2. Step 2: Convert to fraction form
    130,665.60/195,796.80 = 97,228.80/x
  3. Step 3: Cross multiply
    130,665.60x = 195,796.80 × 97,228.80
  4. Step 4: Simplify right side
    130,665.60x = 19,037,087,907.84
  5. Step 5: Solve for x
    x = 19,037,087,907.84/130,665.60
  6. Step 6: Final answer
    x = 145,693.19

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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.