Home / 134,665.29-185,837.63-78,108.93

Finding the Fourth Proportional to 134,665.29, 185,837.63 and 78,108.93

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Solution

The fourth proportional to 134,665.29, 185,837.63 and 78,108.93 is: 107,790.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,665.29 : 185,837.63 = 78,108.93 : x
  2. Step 2: Convert to fraction form
    134,665.29/185,837.63 = 78,108.93/x
  3. Step 3: Cross multiply
    134,665.29x = 185,837.63 × 78,108.93
  4. Step 4: Simplify right side
    134,665.29x = 14,515,578,042.49
  5. Step 5: Solve for x
    x = 14,515,578,042.49/134,665.29
  6. Step 6: Final answer
    x = 107,790.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.