Home / 177,987.26-245,530.40-105,348.79

Finding the Fourth Proportional to 177,987.26, 245,530.40 and 105,348.79

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Solution

The fourth proportional to 177,987.26, 245,530.40 and 105,348.79 is: 145,326.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,987.26 : 245,530.40 = 105,348.79 : x
  2. Step 2: Convert to fraction form
    177,987.26/245,530.40 = 105,348.79/x
  3. Step 3: Cross multiply
    177,987.26x = 245,530.40 × 105,348.79
  4. Step 4: Simplify right side
    177,987.26x = 25,866,330,548.22
  5. Step 5: Solve for x
    x = 25,866,330,548.22/177,987.26
  6. Step 6: Final answer
    x = 145,326.87

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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.