Home / 209,541.80-314,312.70-83,212.18

Finding the Fourth Proportional to 209,541.80, 314,312.70 and 83,212.18

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Solution

The fourth proportional to 209,541.80, 314,312.70 and 83,212.18 is: 124,818.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,541.80 : 314,312.70 = 83,212.18 : x
  2. Step 2: Convert to fraction form
    209,541.80/314,312.70 = 83,212.18/x
  3. Step 3: Cross multiply
    209,541.80x = 314,312.70 × 83,212.18
  4. Step 4: Simplify right side
    209,541.80x = 26,154,644,968.69
  5. Step 5: Solve for x
    x = 26,154,644,968.69/209,541.80
  6. Step 6: Final answer
    x = 124,818.27

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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.