Home / 142,281.40-213,422.10-134,116.60

Finding the Fourth Proportional to 142,281.40, 213,422.10 and 134,116.60

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Solution

The fourth proportional to 142,281.40, 213,422.10 and 134,116.60 is: 201,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,281.40 : 213,422.10 = 134,116.60 : x
  2. Step 2: Convert to fraction form
    142,281.40/213,422.10 = 134,116.60/x
  3. Step 3: Cross multiply
    142,281.40x = 213,422.10 × 134,116.60
  4. Step 4: Simplify right side
    142,281.40x = 28,623,446,416.86
  5. Step 5: Solve for x
    x = 28,623,446,416.86/142,281.40
  6. Step 6: Final answer
    x = 201,174.90

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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.