Home / 105,254.70-157,994.46-45,312.84

Finding the Fourth Proportional to 105,254.70, 157,994.46 and 45,312.84

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Solution

The fourth proportional to 105,254.70, 157,994.46 and 45,312.84 is: 68,017.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,254.70 : 157,994.46 = 45,312.84 : x
  2. Step 2: Convert to fraction form
    105,254.70/157,994.46 = 45,312.84/x
  3. Step 3: Cross multiply
    105,254.70x = 157,994.46 × 45,312.84
  4. Step 4: Simplify right side
    105,254.70x = 7,159,177,686.87
  5. Step 5: Solve for x
    x = 7,159,177,686.87/105,254.70
  6. Step 6: Final answer
    x = 68,017.65

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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.