Home / 102,749.60-154,124.40-28,877.60

Finding the Fourth Proportional to 102,749.60, 154,124.40 and 28,877.60

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Solution

The fourth proportional to 102,749.60, 154,124.40 and 28,877.60 is: 43,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,749.60 : 154,124.40 = 28,877.60 : x
  2. Step 2: Convert to fraction form
    102,749.60/154,124.40 = 28,877.60/x
  3. Step 3: Cross multiply
    102,749.60x = 154,124.40 × 28,877.60
  4. Step 4: Simplify right side
    102,749.60x = 4,450,742,773.44
  5. Step 5: Solve for x
    x = 4,450,742,773.44/102,749.60
  6. Step 6: Final answer
    x = 43,316.40

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1.5x scale

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.