Home / 142,522.60-214,302.30-139,412.20

Finding the Fourth Proportional to 142,522.60, 214,302.30 and 139,412.20

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Solution

The fourth proportional to 142,522.60, 214,302.30 and 139,412.20 is: 209,625.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,522.60 : 214,302.30 = 139,412.20 : x
  2. Step 2: Convert to fraction form
    142,522.60/214,302.30 = 139,412.20/x
  3. Step 3: Cross multiply
    142,522.60x = 214,302.30 × 139,412.20
  4. Step 4: Simplify right side
    142,522.60x = 29,876,355,108.06
  5. Step 5: Solve for x
    x = 29,876,355,108.06/142,522.60
  6. Step 6: Final answer
    x = 209,625.39

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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.