Home / 145,869.60-218,777.40-40,666.80

Finding the Fourth Proportional to 145,869.60, 218,777.40 and 40,666.80

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Solution

The fourth proportional to 145,869.60, 218,777.40 and 40,666.80 is: 60,992.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,869.60 : 218,777.40 = 40,666.80 : x
  2. Step 2: Convert to fraction form
    145,869.60/218,777.40 = 40,666.80/x
  3. Step 3: Cross multiply
    145,869.60x = 218,777.40 × 40,666.80
  4. Step 4: Simplify right side
    145,869.60x = 8,896,976,770.32
  5. Step 5: Solve for x
    x = 8,896,976,770.32/145,869.60
  6. Step 6: Final answer
    x = 60,992.67

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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.