Home / 209,133.53-288,603.30-118,489.29

Finding the Fourth Proportional to 209,133.53, 288,603.30 and 118,489.29

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Solution

The fourth proportional to 209,133.53, 288,603.30 and 118,489.29 is: 163,514.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,133.53 : 288,603.30 = 118,489.29 : x
  2. Step 2: Convert to fraction form
    209,133.53/288,603.30 = 118,489.29/x
  3. Step 3: Cross multiply
    209,133.53x = 288,603.30 × 118,489.29
  4. Step 4: Simplify right side
    209,133.53x = 34,196,400,108.66
  5. Step 5: Solve for x
    x = 34,196,400,108.66/209,133.53
  6. Step 6: Final answer
    x = 163,514.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.