Home / 191,013.18-286,577.01-77,102.34

Finding the Fourth Proportional to 191,013.18, 286,577.01 and 77,102.34

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Solution

The fourth proportional to 191,013.18, 286,577.01 and 77,102.34 is: 115,676.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,013.18 : 286,577.01 = 77,102.34 : x
  2. Step 2: Convert to fraction form
    191,013.18/286,577.01 = 77,102.34/x
  3. Step 3: Cross multiply
    191,013.18x = 286,577.01 × 77,102.34
  4. Step 4: Simplify right side
    191,013.18x = 22,095,758,061.20
  5. Step 5: Solve for x
    x = 22,095,758,061.20/191,013.18
  6. Step 6: Final answer
    x = 115,676.61

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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.