Home / 145,328.45-217,676.23-70,290.32

Finding the Fourth Proportional to 145,328.45, 217,676.23 and 70,290.32

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Solution

The fourth proportional to 145,328.45, 217,676.23 and 70,290.32 is: 105,282.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,328.45 : 217,676.23 = 70,290.32 : x
  2. Step 2: Convert to fraction form
    145,328.45/217,676.23 = 70,290.32/x
  3. Step 3: Cross multiply
    145,328.45x = 217,676.23 × 70,290.32
  4. Step 4: Simplify right side
    145,328.45x = 15,300,530,598.99
  5. Step 5: Solve for x
    x = 15,300,530,598.99/145,328.45
  6. Step 6: Final answer
    x = 105,282.42

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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.