Home / 127,789.09-176,350.14-70,430.47

Finding the Fourth Proportional to 127,789.09, 176,350.14 and 70,430.47

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Solution

The fourth proportional to 127,789.09, 176,350.14 and 70,430.47 is: 97,194.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,789.09 : 176,350.14 = 70,430.47 : x
  2. Step 2: Convert to fraction form
    127,789.09/176,350.14 = 70,430.47/x
  3. Step 3: Cross multiply
    127,789.09x = 176,350.14 × 70,430.47
  4. Step 4: Simplify right side
    127,789.09x = 12,420,422,803.89
  5. Step 5: Solve for x
    x = 12,420,422,803.89/127,789.09
  6. Step 6: Final answer
    x = 97,194.71

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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.