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Finding the Fourth Proportional to 130,995, 196,328.08 and 56,026.96

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Solution

The fourth proportional to 130,995, 196,328.08 and 56,026.96 is: 83,970.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,995 : 196,328.08 = 56,026.96 : x
  2. Step 2: Convert to fraction form
    130,995/196,328.08 = 56,026.96/x
  3. Step 3: Cross multiply
    130,995x = 196,328.08 × 56,026.96
  4. Step 4: Simplify right side
    130,995x = 10,999,665,485.04
  5. Step 5: Solve for x
    x = 10,999,665,485.04/130,995
  6. Step 6: Final answer
    x = 83,970.12

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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.