Home / 149,928.40-224,748.60-86,683.60

Finding the Fourth Proportional to 149,928.40, 224,748.60 and 86,683.60

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Solution

The fourth proportional to 149,928.40, 224,748.60 and 86,683.60 is: 129,942.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,928.40 : 224,748.60 = 86,683.60 : x
  2. Step 2: Convert to fraction form
    149,928.40/224,748.60 = 86,683.60/x
  3. Step 3: Cross multiply
    149,928.40x = 224,748.60 × 86,683.60
  4. Step 4: Simplify right side
    149,928.40x = 19,482,017,742.96
  5. Step 5: Solve for x
    x = 19,482,017,742.96/149,928.40
  6. Step 6: Final answer
    x = 129,942.14

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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.