Home / 99,189.32-136,881.44-53,866.77

Finding the Fourth Proportional to 99,189.32, 136,881.44 and 53,866.77

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Solution

The fourth proportional to 99,189.32, 136,881.44 and 53,866.77 is: 74,336.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,189.32 : 136,881.44 = 53,866.77 : x
  2. Step 2: Convert to fraction form
    99,189.32/136,881.44 = 53,866.77/x
  3. Step 3: Cross multiply
    99,189.32x = 136,881.44 × 53,866.77
  4. Step 4: Simplify right side
    99,189.32x = 7,373,360,776.41
  5. Step 5: Solve for x
    x = 7,373,360,776.41/99,189.32
  6. Step 6: Final answer
    x = 74,336.24

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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.