Home / 118,972.10-164,095.80-76,490.04

Finding the Fourth Proportional to 118,972.10, 164,095.80 and 76,490.04

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Solution

The fourth proportional to 118,972.10, 164,095.80 and 76,490.04 is: 105,501.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,972.10 : 164,095.80 = 76,490.04 : x
  2. Step 2: Convert to fraction form
    118,972.10/164,095.80 = 76,490.04/x
  3. Step 3: Cross multiply
    118,972.10x = 164,095.80 × 76,490.04
  4. Step 4: Simplify right side
    118,972.10x = 12,551,694,305.83
  5. Step 5: Solve for x
    x = 12,551,694,305.83/118,972.10
  6. Step 6: Final answer
    x = 105,501.16

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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.