Home / 134,187.60-201,281.40-45,419.70

Finding the Fourth Proportional to 134,187.60, 201,281.40 and 45,419.70

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Solution

The fourth proportional to 134,187.60, 201,281.40 and 45,419.70 is: 68,129.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,187.60 : 201,281.40 = 45,419.70 : x
  2. Step 2: Convert to fraction form
    134,187.60/201,281.40 = 45,419.70/x
  3. Step 3: Cross multiply
    134,187.60x = 201,281.40 × 45,419.70
  4. Step 4: Simplify right side
    134,187.60x = 9,142,140,803.58
  5. Step 5: Solve for x
    x = 9,142,140,803.58/134,187.60
  6. Step 6: Final answer
    x = 68,129.55

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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.