Home / 105,302.02-145,233.17-79,546.51

Finding the Fourth Proportional to 105,302.02, 145,233.17 and 79,546.51

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Solution

The fourth proportional to 105,302.02, 145,233.17 and 79,546.51 is: 109,711.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,302.02 : 145,233.17 = 79,546.51 : x
  2. Step 2: Convert to fraction form
    105,302.02/145,233.17 = 79,546.51/x
  3. Step 3: Cross multiply
    105,302.02x = 145,233.17 × 79,546.51
  4. Step 4: Simplify right side
    105,302.02x = 11,552,791,809.74
  5. Step 5: Solve for x
    x = 11,552,791,809.74/105,302.02
  6. Step 6: Final answer
    x = 109,711.02

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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.