Home / 117,829.48-176,579.10-91,412.20

Finding the Fourth Proportional to 117,829.48, 176,579.10 and 91,412.20

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Solution

The fourth proportional to 117,829.48, 176,579.10 and 91,412.20 is: 136,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,829.48 : 176,579.10 = 91,412.20 : x
  2. Step 2: Convert to fraction form
    117,829.48/176,579.10 = 91,412.20/x
  3. Step 3: Cross multiply
    117,829.48x = 176,579.10 × 91,412.20
  4. Step 4: Simplify right side
    117,829.48x = 16,141,484,005.02
  5. Step 5: Solve for x
    x = 16,141,484,005.02/117,829.48
  6. Step 6: Final answer
    x = 136,990.20

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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.