Home / 152,316.80-228,475.20-39,989.60

Finding the Fourth Proportional to 152,316.80, 228,475.20 and 39,989.60

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Solution

The fourth proportional to 152,316.80, 228,475.20 and 39,989.60 is: 59,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,316.80 : 228,475.20 = 39,989.60 : x
  2. Step 2: Convert to fraction form
    152,316.80/228,475.20 = 39,989.60/x
  3. Step 3: Cross multiply
    152,316.80x = 228,475.20 × 39,989.60
  4. Step 4: Simplify right side
    152,316.80x = 9,136,631,857.92
  5. Step 5: Solve for x
    x = 9,136,631,857.92/152,316.80
  6. Step 6: Final answer
    x = 59,984.40

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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.