Home / 191,016.16-286,581.54-77,105.36

Finding the Fourth Proportional to 191,016.16, 286,581.54 and 77,105.36

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Solution

The fourth proportional to 191,016.16, 286,581.54 and 77,105.36 is: 115,681.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,016.16 : 286,581.54 = 77,105.36 : x
  2. Step 2: Convert to fraction form
    191,016.16/286,581.54 = 77,105.36/x
  3. Step 3: Cross multiply
    191,016.16x = 286,581.54 × 77,105.36
  4. Step 4: Simplify right side
    191,016.16x = 22,096,972,811.05
  5. Step 5: Solve for x
    x = 22,096,972,811.05/191,016.16
  6. Step 6: Final answer
    x = 115,681.17

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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.