Home / 201,895.75-278,621.90-112,477.51

Finding the Fourth Proportional to 201,895.75, 278,621.90 and 112,477.51

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Solution

The fourth proportional to 201,895.75, 278,621.90 and 112,477.51 is: 155,222.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,895.75 : 278,621.90 = 112,477.51 : x
  2. Step 2: Convert to fraction form
    201,895.75/278,621.90 = 112,477.51/x
  3. Step 3: Cross multiply
    201,895.75x = 278,621.90 × 112,477.51
  4. Step 4: Simplify right side
    201,895.75x = 31,338,696,981.08
  5. Step 5: Solve for x
    x = 31,338,696,981.08/201,895.75
  6. Step 6: Final answer
    x = 155,222.17

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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.