Home / 145,365.40-218,048.10-113,872.60

Finding the Fourth Proportional to 145,365.40, 218,048.10 and 113,872.60

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Solution

The fourth proportional to 145,365.40, 218,048.10 and 113,872.60 is: 170,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,365.40 : 218,048.10 = 113,872.60 : x
  2. Step 2: Convert to fraction form
    145,365.40/218,048.10 = 113,872.60/x
  3. Step 3: Cross multiply
    145,365.40x = 218,048.10 × 113,872.60
  4. Step 4: Simplify right side
    145,365.40x = 24,829,704,072.06
  5. Step 5: Solve for x
    x = 24,829,704,072.06/145,365.40
  6. Step 6: Final answer
    x = 170,808.90

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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.