Home / 116,104.74-160,273.53-78,430.02

Finding the Fourth Proportional to 116,104.74, 160,273.53 and 78,430.02

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Solution

The fourth proportional to 116,104.74, 160,273.53 and 78,430.02 is: 108,266.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,104.74 : 160,273.53 = 78,430.02 : x
  2. Step 2: Convert to fraction form
    116,104.74/160,273.53 = 78,430.02/x
  3. Step 3: Cross multiply
    116,104.74x = 160,273.53 × 78,430.02
  4. Step 4: Simplify right side
    116,104.74x = 12,570,256,163.37
  5. Step 5: Solve for x
    x = 12,570,256,163.37/116,104.74
  6. Step 6: Final answer
    x = 108,266.52

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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.