Home / 105,254.83-157,994.64-45,312.97

Finding the Fourth Proportional to 105,254.83, 157,994.64 and 45,312.97

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Solution

The fourth proportional to 105,254.83, 157,994.64 and 45,312.97 is: 68,017.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,254.83 : 157,994.64 = 45,312.97 : x
  2. Step 2: Convert to fraction form
    105,254.83/157,994.64 = 45,312.97/x
  3. Step 3: Cross multiply
    105,254.83x = 157,994.64 × 45,312.97
  4. Step 4: Simplify right side
    105,254.83x = 7,159,206,382.48
  5. Step 5: Solve for x
    x = 7,159,206,382.48/105,254.83
  6. Step 6: Final answer
    x = 68,017.84

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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.