Home / 99,295.15-137,028.13-53,973.12

Finding the Fourth Proportional to 99,295.15, 137,028.13 and 53,973.12

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Solution

The fourth proportional to 99,295.15, 137,028.13 and 53,973.12 is: 74,483.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,295.15 : 137,028.13 = 53,973.12 : x
  2. Step 2: Convert to fraction form
    99,295.15/137,028.13 = 53,973.12/x
  3. Step 3: Cross multiply
    99,295.15x = 137,028.13 × 53,973.12
  4. Step 4: Simplify right side
    99,295.15x = 7,395,835,434
  5. Step 5: Solve for x
    x = 7,395,835,434/99,295.15
  6. Step 6: Final answer
    x = 74,483.35

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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.