Home / 117,464.31-162,106.11-72,133.34

Finding the Fourth Proportional to 117,464.31, 162,106.11 and 72,133.34

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Solution

The fourth proportional to 117,464.31, 162,106.11 and 72,133.34 is: 99,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,464.31 : 162,106.11 = 72,133.34 : x
  2. Step 2: Convert to fraction form
    117,464.31/162,106.11 = 72,133.34/x
  3. Step 3: Cross multiply
    117,464.31x = 162,106.11 × 72,133.34
  4. Step 4: Simplify right side
    117,464.31x = 11,693,254,338.18
  5. Step 5: Solve for x
    x = 11,693,254,338.18/117,464.31
  6. Step 6: Final answer
    x = 99,547.30

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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.