Home / 289,779.54-434,632.40-112,165.04

Finding the Fourth Proportional to 289,779.54, 434,632.40 and 112,165.04

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Solution

The fourth proportional to 289,779.54, 434,632.40 and 112,165.04 is: 168,233.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,779.54 : 434,632.40 = 112,165.04 : x
  2. Step 2: Convert to fraction form
    289,779.54/434,632.40 = 112,165.04/x
  3. Step 3: Cross multiply
    289,779.54x = 434,632.40 × 112,165.04
  4. Step 4: Simplify right side
    289,779.54x = 48,750,560,531.30
  5. Step 5: Solve for x
    x = 48,750,560,531.30/289,779.54
  6. Step 6: Final answer
    x = 168,233.27

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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.