Home / 145,529.60-218,294.40-143,196.80

Finding the Fourth Proportional to 145,529.60, 218,294.40 and 143,196.80

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Solution

The fourth proportional to 145,529.60, 218,294.40 and 143,196.80 is: 214,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,529.60 : 218,294.40 = 143,196.80 : x
  2. Step 2: Convert to fraction form
    145,529.60/218,294.40 = 143,196.80/x
  3. Step 3: Cross multiply
    145,529.60x = 218,294.40 × 143,196.80
  4. Step 4: Simplify right side
    145,529.60x = 31,259,059,537.92
  5. Step 5: Solve for x
    x = 31,259,059,537.92/145,529.60
  6. Step 6: Final answer
    x = 214,795.20

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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.