Home / 209,342.45-288,886.41-118,706.69

Finding the Fourth Proportional to 209,342.45, 288,886.41 and 118,706.69

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Solution

The fourth proportional to 209,342.45, 288,886.41 and 118,706.69 is: 163,811.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,342.45 : 288,886.41 = 118,706.69 : x
  2. Step 2: Convert to fraction form
    209,342.45/288,886.41 = 118,706.69/x
  3. Step 3: Cross multiply
    209,342.45x = 288,886.41 × 118,706.69
  4. Step 4: Simplify right side
    209,342.45x = 34,292,748,072.65
  5. Step 5: Solve for x
    x = 34,292,748,072.65/209,342.45
  6. Step 6: Final answer
    x = 163,811.73

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1.5x scale

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.