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Finding the Fourth Proportional to 130,023.60, 195,035.40 and 103,779.60

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Solution

The fourth proportional to 130,023.60, 195,035.40 and 103,779.60 is: 155,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,023.60 : 195,035.40 = 103,779.60 : x
  2. Step 2: Convert to fraction form
    130,023.60/195,035.40 = 103,779.60/x
  3. Step 3: Cross multiply
    130,023.60x = 195,035.40 × 103,779.60
  4. Step 4: Simplify right side
    130,023.60x = 20,240,695,797.84
  5. Step 5: Solve for x
    x = 20,240,695,797.84/130,023.60
  6. Step 6: Final answer
    x = 155,669.40

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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.