Home / 130,471.16-195,458.40-74,349.92

Finding the Fourth Proportional to 130,471.16, 195,458.40 and 74,349.92

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Solution

The fourth proportional to 130,471.16, 195,458.40 and 74,349.92 is: 111,383.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,471.16 : 195,458.40 = 74,349.92 : x
  2. Step 2: Convert to fraction form
    130,471.16/195,458.40 = 74,349.92/x
  3. Step 3: Cross multiply
    130,471.16x = 195,458.40 × 74,349.92
  4. Step 4: Simplify right side
    130,471.16x = 14,532,316,403.33
  5. Step 5: Solve for x
    x = 14,532,316,403.33/130,471.16
  6. Step 6: Final answer
    x = 111,383.36

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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.