Home / 134,181.69-185,159.64-76,807.80

Finding the Fourth Proportional to 134,181.69, 185,159.64 and 76,807.80

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Solution

The fourth proportional to 134,181.69, 185,159.64 and 76,807.80 is: 105,988.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,181.69 : 185,159.64 = 76,807.80 : x
  2. Step 2: Convert to fraction form
    134,181.69/185,159.64 = 76,807.80/x
  3. Step 3: Cross multiply
    134,181.69x = 185,159.64 × 76,807.80
  4. Step 4: Simplify right side
    134,181.69x = 14,221,704,597.19
  5. Step 5: Solve for x
    x = 14,221,704,597.19/134,181.69
  6. Step 6: Final answer
    x = 105,988.41

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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.