Home / 130,608.64-180,239.36-70,993.92

Finding the Fourth Proportional to 130,608.64, 180,239.36 and 70,993.92

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Solution

The fourth proportional to 130,608.64, 180,239.36 and 70,993.92 is: 97,971.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,608.64 : 180,239.36 = 70,993.92 : x
  2. Step 2: Convert to fraction form
    130,608.64/180,239.36 = 70,993.92/x
  3. Step 3: Cross multiply
    130,608.64x = 180,239.36 × 70,993.92
  4. Step 4: Simplify right side
    130,608.64x = 12,795,898,704.69
  5. Step 5: Solve for x
    x = 12,795,898,704.69/130,608.64
  6. Step 6: Final answer
    x = 97,971.30

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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.