Home / 105,254.33-157,993.89-45,312.48

Finding the Fourth Proportional to 105,254.33, 157,993.89 and 45,312.48

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Solution

The fourth proportional to 105,254.33, 157,993.89 and 45,312.48 is: 68,017.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,254.33 : 157,993.89 = 45,312.48 : x
  2. Step 2: Convert to fraction form
    105,254.33/157,993.89 = 45,312.48/x
  3. Step 3: Cross multiply
    105,254.33x = 157,993.89 × 45,312.48
  4. Step 4: Simplify right side
    105,254.33x = 7,159,094,980.75
  5. Step 5: Solve for x
    x = 7,159,094,980.75/105,254.33
  6. Step 6: Final answer
    x = 68,017.11

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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.