Home / 209,054.93-288,210.15-143,641.76

Finding the Fourth Proportional to 209,054.93, 288,210.15 and 143,641.76

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Solution

The fourth proportional to 209,054.93, 288,210.15 and 143,641.76 is: 198,029.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,054.93 : 288,210.15 = 143,641.76 : x
  2. Step 2: Convert to fraction form
    209,054.93/288,210.15 = 143,641.76/x
  3. Step 3: Cross multiply
    209,054.93x = 288,210.15 × 143,641.76
  4. Step 4: Simplify right side
    209,054.93x = 41,399,011,754.81
  5. Step 5: Solve for x
    x = 41,399,011,754.81/209,054.93
  6. Step 6: Final answer
    x = 198,029.35

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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.