Home / 268,140.96-402,205.26-134,985.45

Finding the Fourth Proportional to 268,140.96, 402,205.26 and 134,985.45

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Solution

The fourth proportional to 268,140.96, 402,205.26 and 134,985.45 is: 202,475.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,140.96 : 402,205.26 = 134,985.45 : x
  2. Step 2: Convert to fraction form
    268,140.96/402,205.26 = 134,985.45/x
  3. Step 3: Cross multiply
    268,140.96x = 402,205.26 × 134,985.45
  4. Step 4: Simplify right side
    268,140.96x = 54,291,858,013.47
  5. Step 5: Solve for x
    x = 54,291,858,013.47/268,140.96
  6. Step 6: Final answer
    x = 202,475.06

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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.