Home / 209,172.65-288,647.17-118,529.70

Finding the Fourth Proportional to 209,172.65, 288,647.17 and 118,529.70

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Solution

The fourth proportional to 209,172.65, 288,647.17 and 118,529.70 is: 163,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,172.65 : 288,647.17 = 118,529.70 : x
  2. Step 2: Convert to fraction form
    209,172.65/288,647.17 = 118,529.70/x
  3. Step 3: Cross multiply
    209,172.65x = 288,647.17 × 118,529.70
  4. Step 4: Simplify right side
    209,172.65x = 34,213,262,465.95
  5. Step 5: Solve for x
    x = 34,213,262,465.95/209,172.65
  6. Step 6: Final answer
    x = 163,564.70

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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.