Home / 99,784.36-137,705.28-54,465.16

Finding the Fourth Proportional to 99,784.36, 137,705.28 and 54,465.16

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Solution

The fourth proportional to 99,784.36, 137,705.28 and 54,465.16 is: 75,163.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,784.36 : 137,705.28 = 54,465.16 : x
  2. Step 2: Convert to fraction form
    99,784.36/137,705.28 = 54,465.16/x
  3. Step 3: Cross multiply
    99,784.36x = 137,705.28 × 54,465.16
  4. Step 4: Simplify right side
    99,784.36x = 7,500,140,108.04
  5. Step 5: Solve for x
    x = 7,500,140,108.04/99,784.36
  6. Step 6: Final answer
    x = 75,163.48

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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.