Home / 135,094.34-186,428.31-74,671.58

Finding the Fourth Proportional to 135,094.34, 186,428.31 and 74,671.58

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Solution

The fourth proportional to 135,094.34, 186,428.31 and 74,671.58 is: 103,045.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,094.34 : 186,428.31 = 74,671.58 : x
  2. Step 2: Convert to fraction form
    135,094.34/186,428.31 = 74,671.58/x
  3. Step 3: Cross multiply
    135,094.34x = 186,428.31 × 74,671.58
  4. Step 4: Simplify right side
    135,094.34x = 13,920,896,464.43
  5. Step 5: Solve for x
    x = 13,920,896,464.43/135,094.34
  6. Step 6: Final answer
    x = 103,045.74

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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.