Home / 102,819.56-141,880.02-57,492.86

Finding the Fourth Proportional to 102,819.56, 141,880.02 and 57,492.86

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Solution

The fourth proportional to 102,819.56, 141,880.02 and 57,492.86 is: 79,334.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,819.56 : 141,880.02 = 57,492.86 : x
  2. Step 2: Convert to fraction form
    102,819.56/141,880.02 = 57,492.86/x
  3. Step 3: Cross multiply
    102,819.56x = 141,880.02 × 57,492.86
  4. Step 4: Simplify right side
    102,819.56x = 8,157,088,126.66
  5. Step 5: Solve for x
    x = 8,157,088,126.66/102,819.56
  6. Step 6: Final answer
    x = 79,334.01

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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.