Home / 142,928.60-214,247.10-83,733.80

Finding the Fourth Proportional to 142,928.60, 214,247.10 and 83,733.80

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Solution

The fourth proportional to 142,928.60, 214,247.10 and 83,733.80 is: 125,515.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,928.60 : 214,247.10 = 83,733.80 : x
  2. Step 2: Convert to fraction form
    142,928.60/214,247.10 = 83,733.80/x
  3. Step 3: Cross multiply
    142,928.60x = 214,247.10 × 83,733.80
  4. Step 4: Simplify right side
    142,928.60x = 17,939,723,821.98
  5. Step 5: Solve for x
    x = 17,939,723,821.98/142,928.60
  6. Step 6: Final answer
    x = 125,515.28

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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.