Home / 352,853.21-529,312.59-100,139.90

Finding the Fourth Proportional to 352,853.21, 529,312.59 and 100,139.90

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Solution

The fourth proportional to 352,853.21, 529,312.59 and 100,139.90 is: 150,219.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,853.21 : 529,312.59 = 100,139.90 : x
  2. Step 2: Convert to fraction form
    352,853.21/529,312.59 = 100,139.90/x
  3. Step 3: Cross multiply
    352,853.21x = 529,312.59 × 100,139.90
  4. Step 4: Simplify right side
    352,853.21x = 53,005,307,184.78
  5. Step 5: Solve for x
    x = 53,005,307,184.78/352,853.21
  6. Step 6: Final answer
    x = 150,219.14

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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.