Home / 107,669.79-148,430.27-75,739.59

Finding the Fourth Proportional to 107,669.79, 148,430.27 and 75,739.59

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Solution

The fourth proportional to 107,669.79, 148,430.27 and 75,739.59 is: 104,412.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,669.79 : 148,430.27 = 75,739.59 : x
  2. Step 2: Convert to fraction form
    107,669.79/148,430.27 = 75,739.59/x
  3. Step 3: Cross multiply
    107,669.79x = 148,430.27 × 75,739.59
  4. Step 4: Simplify right side
    107,669.79x = 11,242,047,414.69
  5. Step 5: Solve for x
    x = 11,242,047,414.69/107,669.79
  6. Step 6: Final answer
    x = 104,412.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.