Home / 102,205.02-141,047.57-56,885.90

Finding the Fourth Proportional to 102,205.02, 141,047.57 and 56,885.90

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Solution

The fourth proportional to 102,205.02, 141,047.57 and 56,885.90 is: 78,505.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,205.02 : 141,047.57 = 56,885.90 : x
  2. Step 2: Convert to fraction form
    102,205.02/141,047.57 = 56,885.90/x
  3. Step 3: Cross multiply
    102,205.02x = 141,047.57 × 56,885.90
  4. Step 4: Simplify right side
    102,205.02x = 8,023,616,999.26
  5. Step 5: Solve for x
    x = 8,023,616,999.26/102,205.02
  6. Step 6: Final answer
    x = 78,505.12

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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.