Home / 117,095.40-161,551.99-76,240.87

Finding the Fourth Proportional to 117,095.40, 161,551.99 and 76,240.87

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Solution

The fourth proportional to 117,095.40, 161,551.99 and 76,240.87 is: 105,186.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,095.40 : 161,551.99 = 76,240.87 : x
  2. Step 2: Convert to fraction form
    117,095.40/161,551.99 = 76,240.87/x
  3. Step 3: Cross multiply
    117,095.40x = 161,551.99 × 76,240.87
  4. Step 4: Simplify right side
    117,095.40x = 12,316,864,267.83
  5. Step 5: Solve for x
    x = 12,316,864,267.83/117,095.40
  6. Step 6: Final answer
    x = 105,186.58

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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.