Home / 105,312.24-157,977-52,717.68

Finding the Fourth Proportional to 105,312.24, 157,977 and 52,717.68

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Solution

The fourth proportional to 105,312.24, 157,977 and 52,717.68 is: 79,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,312.24 : 157,977 = 52,717.68 : x
  2. Step 2: Convert to fraction form
    105,312.24/157,977 = 52,717.68/x
  3. Step 3: Cross multiply
    105,312.24x = 157,977 × 52,717.68
  4. Step 4: Simplify right side
    105,312.24x = 8,328,180,933.36
  5. Step 5: Solve for x
    x = 8,328,180,933.36/105,312.24
  6. Step 6: Final answer
    x = 79,080.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.