Home / 98,753.53-136,328.45-77,205.26

Finding the Fourth Proportional to 98,753.53, 136,328.45 and 77,205.26

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Solution

The fourth proportional to 98,753.53, 136,328.45 and 77,205.26 is: 106,581.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,753.53 : 136,328.45 = 77,205.26 : x
  2. Step 2: Convert to fraction form
    98,753.53/136,328.45 = 77,205.26/x
  3. Step 3: Cross multiply
    98,753.53x = 136,328.45 × 77,205.26
  4. Step 4: Simplify right side
    98,753.53x = 10,525,273,427.65
  5. Step 5: Solve for x
    x = 10,525,273,427.65/98,753.53
  6. Step 6: Final answer
    x = 106,581.24

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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.