Home / 445,946.22-668,916.72-108,988.65

Finding the Fourth Proportional to 445,946.22, 668,916.72 and 108,988.65

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Solution

The fourth proportional to 445,946.22, 668,916.72 and 108,988.65 is: 163,482.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,946.22 : 668,916.72 = 108,988.65 : x
  2. Step 2: Convert to fraction form
    445,946.22/668,916.72 = 108,988.65/x
  3. Step 3: Cross multiply
    445,946.22x = 668,916.72 × 108,988.65
  4. Step 4: Simplify right side
    445,946.22x = 72,904,330,275.23
  5. Step 5: Solve for x
    x = 72,904,330,275.23/445,946.22
  6. Step 6: Final answer
    x = 163,482.34

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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.