Home / 134,141.10-201,211.65-86,901.90

Finding the Fourth Proportional to 134,141.10, 201,211.65 and 86,901.90

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Solution

The fourth proportional to 134,141.10, 201,211.65 and 86,901.90 is: 130,352.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,141.10 : 201,211.65 = 86,901.90 : x
  2. Step 2: Convert to fraction form
    134,141.10/201,211.65 = 86,901.90/x
  3. Step 3: Cross multiply
    134,141.10x = 201,211.65 × 86,901.90
  4. Step 4: Simplify right side
    134,141.10x = 17,485,674,687.14
  5. Step 5: Solve for x
    x = 17,485,674,687.14/134,141.10
  6. Step 6: Final answer
    x = 130,352.85

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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.