Home / 209,338.57-288,953.07-118,754.77

Finding the Fourth Proportional to 209,338.57, 288,953.07 and 118,754.77

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Solution

The fourth proportional to 209,338.57, 288,953.07 and 118,754.77 is: 163,918.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,338.57 : 288,953.07 = 118,754.77 : x
  2. Step 2: Convert to fraction form
    209,338.57/288,953.07 = 118,754.77/x
  3. Step 3: Cross multiply
    209,338.57x = 288,953.07 × 118,754.77
  4. Step 4: Simplify right side
    209,338.57x = 34,314,555,368.64
  5. Step 5: Solve for x
    x = 34,314,555,368.64/209,338.57
  6. Step 6: Final answer
    x = 163,918.93

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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.