Home / 102,336.02-141,221.58-57,013.94

Finding the Fourth Proportional to 102,336.02, 141,221.58 and 57,013.94

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Solution

The fourth proportional to 102,336.02, 141,221.58 and 57,013.94 is: 78,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,336.02 : 141,221.58 = 57,013.94 : x
  2. Step 2: Convert to fraction form
    102,336.02/141,221.58 = 57,013.94/x
  3. Step 3: Cross multiply
    102,336.02x = 141,221.58 × 57,013.94
  4. Step 4: Simplify right side
    102,336.02x = 8,051,598,688.83
  5. Step 5: Solve for x
    x = 8,051,598,688.83/102,336.02
  6. Step 6: Final answer
    x = 78,678.05

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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.