Home / 116,275.80-160,517.48-78,021.64

Finding the Fourth Proportional to 116,275.80, 160,517.48 and 78,021.64

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Solution

The fourth proportional to 116,275.80, 160,517.48 and 78,021.64 is: 107,708.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,275.80 : 160,517.48 = 78,021.64 : x
  2. Step 2: Convert to fraction form
    116,275.80/160,517.48 = 78,021.64/x
  3. Step 3: Cross multiply
    116,275.80x = 160,517.48 × 78,021.64
  4. Step 4: Simplify right side
    116,275.80x = 12,523,837,038.27
  5. Step 5: Solve for x
    x = 12,523,837,038.27/116,275.80
  6. Step 6: Final answer
    x = 107,708.03

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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.