Home / 109,213.79-163,820.75-30,328.02

Finding the Fourth Proportional to 109,213.79, 163,820.75 and 30,328.02

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Solution

The fourth proportional to 109,213.79, 163,820.75 and 30,328.02 is: 45,492.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,213.79 : 163,820.75 = 30,328.02 : x
  2. Step 2: Convert to fraction form
    109,213.79/163,820.75 = 30,328.02/x
  3. Step 3: Cross multiply
    109,213.79x = 163,820.75 × 30,328.02
  4. Step 4: Simplify right side
    109,213.79x = 4,968,358,830.77
  5. Step 5: Solve for x
    x = 4,968,358,830.77/109,213.79
  6. Step 6: Final answer
    x = 45,492.05

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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.