Home / 130,113.40-195,024.30-66,909.10

Finding the Fourth Proportional to 130,113.40, 195,024.30 and 66,909.10

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Solution

The fourth proportional to 130,113.40, 195,024.30 and 66,909.10 is: 100,288.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,113.40 : 195,024.30 = 66,909.10 : x
  2. Step 2: Convert to fraction form
    130,113.40/195,024.30 = 66,909.10/x
  3. Step 3: Cross multiply
    130,113.40x = 195,024.30 × 66,909.10
  4. Step 4: Simplify right side
    130,113.40x = 13,048,900,391.13
  5. Step 5: Solve for x
    x = 13,048,900,391.13/130,113.40
  6. Step 6: Final answer
    x = 100,288.67

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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.