Home / 99,116.80-136,782.49-53,795.32

Finding the Fourth Proportional to 99,116.80, 136,782.49 and 53,795.32

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Solution

The fourth proportional to 99,116.80, 136,782.49 and 53,795.32 is: 74,238.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,116.80 : 136,782.49 = 53,795.32 : x
  2. Step 2: Convert to fraction form
    99,116.80/136,782.49 = 53,795.32/x
  3. Step 3: Cross multiply
    99,116.80x = 136,782.49 × 53,795.32
  4. Step 4: Simplify right side
    99,116.80x = 7,358,257,685.46
  5. Step 5: Solve for x
    x = 7,358,257,685.46/99,116.80
  6. Step 6: Final answer
    x = 74,238.25

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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.