Home / 191,014.18-286,578.51-77,103.34

Finding the Fourth Proportional to 191,014.18, 286,578.51 and 77,103.34

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Solution

The fourth proportional to 191,014.18, 286,578.51 and 77,103.34 is: 115,678.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,014.18 : 286,578.51 = 77,103.34 : x
  2. Step 2: Convert to fraction form
    191,014.18/286,578.51 = 77,103.34/x
  3. Step 3: Cross multiply
    191,014.18x = 286,578.51 × 77,103.34
  4. Step 4: Simplify right side
    191,014.18x = 22,096,160,293.22
  5. Step 5: Solve for x
    x = 22,096,160,293.22/191,014.18
  6. Step 6: Final answer
    x = 115,678.12

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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.