Home / 79,164.24-118,047.90-78,453.06

Finding the Fourth Proportional to 79,164.24, 118,047.90 and 78,453.06

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Solution

The fourth proportional to 79,164.24, 118,047.90 and 78,453.06 is: 116,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,164.24 : 118,047.90 = 78,453.06 : x
  2. Step 2: Convert to fraction form
    79,164.24/118,047.90 = 78,453.06/x
  3. Step 3: Cross multiply
    79,164.24x = 118,047.90 × 78,453.06
  4. Step 4: Simplify right side
    79,164.24x = 9,261,218,981.57
  5. Step 5: Solve for x
    x = 9,261,218,981.57/79,164.24
  6. Step 6: Final answer
    x = 116,987.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.