Home / 209,368.11-288,925.29-113,874.81

Finding the Fourth Proportional to 209,368.11, 288,925.29 and 113,874.81

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Solution

The fourth proportional to 209,368.11, 288,925.29 and 113,874.81 is: 157,145.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,368.11 : 288,925.29 = 113,874.81 : x
  2. Step 2: Convert to fraction form
    209,368.11/288,925.29 = 113,874.81/x
  3. Step 3: Cross multiply
    209,368.11x = 288,925.29 × 113,874.81
  4. Step 4: Simplify right side
    209,368.11x = 32,901,312,502.94
  5. Step 5: Solve for x
    x = 32,901,312,502.94/209,368.11
  6. Step 6: Final answer
    x = 157,145.77

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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.