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Finding the Fourth Proportional to 173,390.40, 260,085.60 and 84,657.60

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Solution

The fourth proportional to 173,390.40, 260,085.60 and 84,657.60 is: 126,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,390.40 : 260,085.60 = 84,657.60 : x
  2. Step 2: Convert to fraction form
    173,390.40/260,085.60 = 84,657.60/x
  3. Step 3: Cross multiply
    173,390.40x = 260,085.60 × 84,657.60
  4. Step 4: Simplify right side
    173,390.40x = 22,018,222,690.56
  5. Step 5: Solve for x
    x = 22,018,222,690.56/173,390.40
  6. Step 6: Final answer
    x = 126,986.40

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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.