Home / 191,013.68-286,577.76-77,102.84

Finding the Fourth Proportional to 191,013.68, 286,577.76 and 77,102.84

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Solution

The fourth proportional to 191,013.68, 286,577.76 and 77,102.84 is: 115,677.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,013.68 : 286,577.76 = 77,102.84 : x
  2. Step 2: Convert to fraction form
    191,013.68/286,577.76 = 77,102.84/x
  3. Step 3: Cross multiply
    191,013.68x = 286,577.76 × 77,102.84
  4. Step 4: Simplify right side
    191,013.68x = 22,095,959,176.84
  5. Step 5: Solve for x
    x = 22,095,959,176.84/191,013.68
  6. Step 6: Final answer
    x = 115,677.36

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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.