Home / 142,734.04-214,131.12-53,985.60

Finding the Fourth Proportional to 142,734.04, 214,131.12 and 53,985.60

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Solution

The fourth proportional to 142,734.04, 214,131.12 and 53,985.60 is: 80,989.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,734.04 : 214,131.12 = 53,985.60 : x
  2. Step 2: Convert to fraction form
    142,734.04/214,131.12 = 53,985.60/x
  3. Step 3: Cross multiply
    142,734.04x = 214,131.12 × 53,985.60
  4. Step 4: Simplify right side
    142,734.04x = 11,559,996,991.87
  5. Step 5: Solve for x
    x = 11,559,996,991.87/142,734.04
  6. Step 6: Final answer
    x = 80,989.77

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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.