Home / 189,917.18-262,114.13-118,320.26

Finding the Fourth Proportional to 189,917.18, 262,114.13 and 118,320.26

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Solution

The fourth proportional to 189,917.18, 262,114.13 and 118,320.26 is: 163,299.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,917.18 : 262,114.13 = 118,320.26 : x
  2. Step 2: Convert to fraction form
    189,917.18/262,114.13 = 118,320.26/x
  3. Step 3: Cross multiply
    189,917.18x = 262,114.13 × 118,320.26
  4. Step 4: Simplify right side
    189,917.18x = 31,013,412,962.36
  5. Step 5: Solve for x
    x = 31,013,412,962.36/189,917.18
  6. Step 6: Final answer
    x = 163,299.68

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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.