Home / 102,828.20-141,910.14-57,510.40

Finding the Fourth Proportional to 102,828.20, 141,910.14 and 57,510.40

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Solution

The fourth proportional to 102,828.20, 141,910.14 and 57,510.40 is: 79,368.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,828.20 : 141,910.14 = 57,510.40 : x
  2. Step 2: Convert to fraction form
    102,828.20/141,910.14 = 57,510.40/x
  3. Step 3: Cross multiply
    102,828.20x = 141,910.14 × 57,510.40
  4. Step 4: Simplify right side
    102,828.20x = 8,161,308,205.91
  5. Step 5: Solve for x
    x = 8,161,308,205.91/102,828.20
  6. Step 6: Final answer
    x = 79,368.39

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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.