Home / 129,749.74-179,054.07-70,133.74

Finding the Fourth Proportional to 129,749.74, 179,054.07 and 70,133.74

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Solution

The fourth proportional to 129,749.74, 179,054.07 and 70,133.74 is: 96,784.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,749.74 : 179,054.07 = 70,133.74 : x
  2. Step 2: Convert to fraction form
    129,749.74/179,054.07 = 70,133.74/x
  3. Step 3: Cross multiply
    129,749.74x = 179,054.07 × 70,133.74
  4. Step 4: Simplify right side
    129,749.74x = 12,557,731,683.64
  5. Step 5: Solve for x
    x = 12,557,731,683.64/129,749.74
  6. Step 6: Final answer
    x = 96,784.25

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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.