Home / 78,746.98-118,118.85-26,156.92

Finding the Fourth Proportional to 78,746.98, 118,118.85 and 26,156.92

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Solution

The fourth proportional to 78,746.98, 118,118.85 and 26,156.92 is: 39,234.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,746.98 : 118,118.85 = 26,156.92 : x
  2. Step 2: Convert to fraction form
    78,746.98/118,118.85 = 26,156.92/x
  3. Step 3: Cross multiply
    78,746.98x = 118,118.85 × 26,156.92
  4. Step 4: Simplify right side
    78,746.98x = 3,089,625,309.94
  5. Step 5: Solve for x
    x = 3,089,625,309.94/78,746.98
  6. Step 6: Final answer
    x = 39,234.84

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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.