Home / 135,165.08-186,526.68-77,815.64

Finding the Fourth Proportional to 135,165.08, 186,526.68 and 77,815.64

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Solution

The fourth proportional to 135,165.08, 186,526.68 and 77,815.64 is: 107,384.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,165.08 : 186,526.68 = 77,815.64 : x
  2. Step 2: Convert to fraction form
    135,165.08/186,526.68 = 77,815.64/x
  3. Step 3: Cross multiply
    135,165.08x = 186,526.68 × 77,815.64
  4. Step 4: Simplify right side
    135,165.08x = 14,514,692,981.28
  5. Step 5: Solve for x
    x = 14,514,692,981.28/135,165.08
  6. Step 6: Final answer
    x = 107,384.93

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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.