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Finding the Fourth Proportional to 130,317.75, 179,838.50 and 70,701.75

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Solution

The fourth proportional to 130,317.75, 179,838.50 and 70,701.75 is: 97,568.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,317.75 : 179,838.50 = 70,701.75 : x
  2. Step 2: Convert to fraction form
    130,317.75/179,838.50 = 70,701.75/x
  3. Step 3: Cross multiply
    130,317.75x = 179,838.50 × 70,701.75
  4. Step 4: Simplify right side
    130,317.75x = 12,714,896,313.87
  5. Step 5: Solve for x
    x = 12,714,896,313.87/130,317.75
  6. Step 6: Final answer
    x = 97,568.42

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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.