Home / 134,721.12-185,914.02-74,294.28

Finding the Fourth Proportional to 134,721.12, 185,914.02 and 74,294.28

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Solution

The fourth proportional to 134,721.12, 185,914.02 and 74,294.28 is: 102,525.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,721.12 : 185,914.02 = 74,294.28 : x
  2. Step 2: Convert to fraction form
    134,721.12/185,914.02 = 74,294.28/x
  3. Step 3: Cross multiply
    134,721.12x = 185,914.02 × 74,294.28
  4. Step 4: Simplify right side
    134,721.12x = 13,812,348,257.81
  5. Step 5: Solve for x
    x = 13,812,348,257.81/134,721.12
  6. Step 6: Final answer
    x = 102,525.49

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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.