Home / 130,017.40-194,880.30-66,813.10

Finding the Fourth Proportional to 130,017.40, 194,880.30 and 66,813.10

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Solution

The fourth proportional to 130,017.40, 194,880.30 and 66,813.10 is: 100,144.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,017.40 : 194,880.30 = 66,813.10 : x
  2. Step 2: Convert to fraction form
    130,017.40/194,880.30 = 66,813.10/x
  3. Step 3: Cross multiply
    130,017.40x = 194,880.30 × 66,813.10
  4. Step 4: Simplify right side
    130,017.40x = 13,020,556,971.93
  5. Step 5: Solve for x
    x = 13,020,556,971.93/130,017.40
  6. Step 6: Final answer
    x = 100,144.73

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1.5x scale

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.