Home / 127,221.69-175,559.09-70,629.42

Finding the Fourth Proportional to 127,221.69, 175,559.09 and 70,629.42

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Solution

The fourth proportional to 127,221.69, 175,559.09 and 70,629.42 is: 97,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,221.69 : 175,559.09 = 70,629.42 : x
  2. Step 2: Convert to fraction form
    127,221.69/175,559.09 = 70,629.42/x
  3. Step 3: Cross multiply
    127,221.69x = 175,559.09 × 70,629.42
  4. Step 4: Simplify right side
    127,221.69x = 12,399,636,349.28
  5. Step 5: Solve for x
    x = 12,399,636,349.28/127,221.69
  6. Step 6: Final answer
    x = 97,464.80

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1.5x scale

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.