Home / 134,871.34-186,123.12-74,442.10

Finding the Fourth Proportional to 134,871.34, 186,123.12 and 74,442.10

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Solution

The fourth proportional to 134,871.34, 186,123.12 and 74,442.10 is: 102,730.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,871.34 : 186,123.12 = 74,442.10 : x
  2. Step 2: Convert to fraction form
    134,871.34/186,123.12 = 74,442.10/x
  3. Step 3: Cross multiply
    134,871.34x = 186,123.12 × 74,442.10
  4. Step 4: Simplify right side
    134,871.34x = 13,855,395,911.35
  5. Step 5: Solve for x
    x = 13,855,395,911.35/134,871.34
  6. Step 6: Final answer
    x = 102,730.47

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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.