Home / 141,898.02-195,815.52-78,234.18

Finding the Fourth Proportional to 141,898.02, 195,815.52 and 78,234.18

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Solution

The fourth proportional to 141,898.02, 195,815.52 and 78,234.18 is: 107,961.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,898.02 : 195,815.52 = 78,234.18 : x
  2. Step 2: Convert to fraction form
    141,898.02/195,815.52 = 78,234.18/x
  3. Step 3: Cross multiply
    141,898.02x = 195,815.52 × 78,234.18
  4. Step 4: Simplify right side
    141,898.02x = 15,319,466,638.47
  5. Step 5: Solve for x
    x = 15,319,466,638.47/141,898.02
  6. Step 6: Final answer
    x = 107,961.10

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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.