Home / 105,664.17-145,814.26-57,916.49

Finding the Fourth Proportional to 105,664.17, 145,814.26 and 57,916.49

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Solution

The fourth proportional to 105,664.17, 145,814.26 and 57,916.49 is: 79,923.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,664.17 : 145,814.26 = 57,916.49 : x
  2. Step 2: Convert to fraction form
    105,664.17/145,814.26 = 57,916.49/x
  3. Step 3: Cross multiply
    105,664.17x = 145,814.26 × 57,916.49
  4. Step 4: Simplify right side
    105,664.17x = 8,445,049,841.56
  5. Step 5: Solve for x
    x = 8,445,049,841.56/105,664.17
  6. Step 6: Final answer
    x = 79,923.50

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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.