Home / 130,999.12-196,547.34-90,997.03

Finding the Fourth Proportional to 130,999.12, 196,547.34 and 90,997.03

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Solution

The fourth proportional to 130,999.12, 196,547.34 and 90,997.03 is: 136,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,999.12 : 196,547.34 = 90,997.03 : x
  2. Step 2: Convert to fraction form
    130,999.12/196,547.34 = 90,997.03/x
  3. Step 3: Cross multiply
    130,999.12x = 196,547.34 × 90,997.03
  4. Step 4: Simplify right side
    130,999.12x = 17,885,224,194.40
  5. Step 5: Solve for x
    x = 17,885,224,194.40/130,999.12
  6. Step 6: Final answer
    x = 136,529.35

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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.