Home / 78,623.15-117,746.06-69,167.07

Finding the Fourth Proportional to 78,623.15, 117,746.06 and 69,167.07

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Solution

The fourth proportional to 78,623.15, 117,746.06 and 69,167.07 is: 103,584.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,623.15 : 117,746.06 = 69,167.07 : x
  2. Step 2: Convert to fraction form
    78,623.15/117,746.06 = 69,167.07/x
  3. Step 3: Cross multiply
    78,623.15x = 117,746.06 × 69,167.07
  4. Step 4: Simplify right side
    78,623.15x = 8,144,149,628.41
  5. Step 5: Solve for x
    x = 8,144,149,628.41/78,623.15
  6. Step 6: Final answer
    x = 103,584.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.