Home / 191,306.18-286,565.49-112,229.72

Finding the Fourth Proportional to 191,306.18, 286,565.49 and 112,229.72

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Solution

The fourth proportional to 191,306.18, 286,565.49 and 112,229.72 is: 168,113.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,306.18 : 286,565.49 = 112,229.72 : x
  2. Step 2: Convert to fraction form
    191,306.18/286,565.49 = 112,229.72/x
  3. Step 3: Cross multiply
    191,306.18x = 286,565.49 × 112,229.72
  4. Step 4: Simplify right side
    191,306.18x = 32,161,163,271.54
  5. Step 5: Solve for x
    x = 32,161,163,271.54/191,306.18
  6. Step 6: Final answer
    x = 168,113.57

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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.