Home / 209,869.48-289,630.14-118,017.67

Finding the Fourth Proportional to 209,869.48, 289,630.14 and 118,017.67

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Solution

The fourth proportional to 209,869.48, 289,630.14 and 118,017.67 is: 162,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,869.48 : 289,630.14 = 118,017.67 : x
  2. Step 2: Convert to fraction form
    209,869.48/289,630.14 = 118,017.67/x
  3. Step 3: Cross multiply
    209,869.48x = 289,630.14 × 118,017.67
  4. Step 4: Simplify right side
    209,869.48x = 34,181,473,855.54
  5. Step 5: Solve for x
    x = 34,181,473,855.54/209,869.48
  6. Step 6: Final answer
    x = 162,870.15

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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.