Home / 99,130.25-136,797.58-53,808.32

Finding the Fourth Proportional to 99,130.25, 136,797.58 and 53,808.32

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Solution

The fourth proportional to 99,130.25, 136,797.58 and 53,808.32 is: 74,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,130.25 : 136,797.58 = 53,808.32 : x
  2. Step 2: Convert to fraction form
    99,130.25/136,797.58 = 53,808.32/x
  3. Step 3: Cross multiply
    99,130.25x = 136,797.58 × 53,808.32
  4. Step 4: Simplify right side
    99,130.25x = 7,360,847,959.87
  5. Step 5: Solve for x
    x = 7,360,847,959.87/99,130.25
  6. Step 6: Final answer
    x = 74,254.31

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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.