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Finding the Fourth Proportional to 157,492.84, 217,336.98 and 85,873.36

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Solution

The fourth proportional to 157,492.84, 217,336.98 and 85,873.36 is: 118,503.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,492.84 : 217,336.98 = 85,873.36 : x
  2. Step 2: Convert to fraction form
    157,492.84/217,336.98 = 85,873.36/x
  3. Step 3: Cross multiply
    157,492.84x = 217,336.98 × 85,873.36
  4. Step 4: Simplify right side
    157,492.84x = 18,663,456,724.85
  5. Step 5: Solve for x
    x = 18,663,456,724.85/157,492.84
  6. Step 6: Final answer
    x = 118,503.53

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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.