Home / 107,897.40-161,759.70-45,516.60

Finding the Fourth Proportional to 107,897.40, 161,759.70 and 45,516.60

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Solution

The fourth proportional to 107,897.40, 161,759.70 and 45,516.60 is: 68,238.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,897.40 : 161,759.70 = 45,516.60 : x
  2. Step 2: Convert to fraction form
    107,897.40/161,759.70 = 45,516.60/x
  3. Step 3: Cross multiply
    107,897.40x = 161,759.70 × 45,516.60
  4. Step 4: Simplify right side
    107,897.40x = 7,362,751,561.02
  5. Step 5: Solve for x
    x = 7,362,751,561.02/107,897.40
  6. Step 6: Final answer
    x = 68,238.45

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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.