Home / 144,812.72-217,336.44-74,712.08

Finding the Fourth Proportional to 144,812.72, 217,336.44 and 74,712.08

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Solution

The fourth proportional to 144,812.72, 217,336.44 and 74,712.08 is: 112,128.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,812.72 : 217,336.44 = 74,712.08 : x
  2. Step 2: Convert to fraction form
    144,812.72/217,336.44 = 74,712.08/x
  3. Step 3: Cross multiply
    144,812.72x = 217,336.44 × 74,712.08
  4. Step 4: Simplify right side
    144,812.72x = 16,237,657,492.20
  5. Step 5: Solve for x
    x = 16,237,657,492.20/144,812.72
  6. Step 6: Final answer
    x = 112,128.67

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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.