Home / 117,769.52-162,547.06-72,447.58

Finding the Fourth Proportional to 117,769.52, 162,547.06 and 72,447.58

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Solution

The fourth proportional to 117,769.52, 162,547.06 and 72,447.58 is: 99,993.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,769.52 : 162,547.06 = 72,447.58 : x
  2. Step 2: Convert to fraction form
    117,769.52/162,547.06 = 72,447.58/x
  3. Step 3: Cross multiply
    117,769.52x = 162,547.06 × 72,447.58
  4. Step 4: Simplify right side
    117,769.52x = 11,776,141,133.11
  5. Step 5: Solve for x
    x = 11,776,141,133.11/117,769.52
  6. Step 6: Final answer
    x = 99,993.11

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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.