Home / 196,547.72-294,887.18-78,187.28

Finding the Fourth Proportional to 196,547.72, 294,887.18 and 78,187.28

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Solution

The fourth proportional to 196,547.72, 294,887.18 and 78,187.28 is: 117,307.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,547.72 : 294,887.18 = 78,187.28 : x
  2. Step 2: Convert to fraction form
    196,547.72/294,887.18 = 78,187.28/x
  3. Step 3: Cross multiply
    196,547.72x = 294,887.18 × 78,187.28
  4. Step 4: Simplify right side
    196,547.72x = 23,056,425,232.10
  5. Step 5: Solve for x
    x = 23,056,425,232.10/196,547.72
  6. Step 6: Final answer
    x = 117,307.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.