Home / 127,619.80-191,429.75-52,657.58

Finding the Fourth Proportional to 127,619.80, 191,429.75 and 52,657.58

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Solution

The fourth proportional to 127,619.80, 191,429.75 and 52,657.58 is: 78,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,619.80 : 191,429.75 = 52,657.58 : x
  2. Step 2: Convert to fraction form
    127,619.80/191,429.75 = 52,657.58/x
  3. Step 3: Cross multiply
    127,619.80x = 191,429.75 × 52,657.58
  4. Step 4: Simplify right side
    127,619.80x = 10,080,227,985.22
  5. Step 5: Solve for x
    x = 10,080,227,985.22/127,619.80
  6. Step 6: Final answer
    x = 78,986.40

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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.