Home / 105,816.60-158,552.10-90,955.80

Finding the Fourth Proportional to 105,816.60, 158,552.10 and 90,955.80

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Solution

The fourth proportional to 105,816.60, 158,552.10 and 90,955.80 is: 136,285.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,816.60 : 158,552.10 = 90,955.80 : x
  2. Step 2: Convert to fraction form
    105,816.60/158,552.10 = 90,955.80/x
  3. Step 3: Cross multiply
    105,816.60x = 158,552.10 × 90,955.80
  4. Step 4: Simplify right side
    105,816.60x = 14,421,233,097.18
  5. Step 5: Solve for x
    x = 14,421,233,097.18/105,816.60
  6. Step 6: Final answer
    x = 136,285.17

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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.