Home / 130,021.60-195,032.40-103,777.60

Finding the Fourth Proportional to 130,021.60, 195,032.40 and 103,777.60

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Solution

The fourth proportional to 130,021.60, 195,032.40 and 103,777.60 is: 155,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,021.60 : 195,032.40 = 103,777.60 : x
  2. Step 2: Convert to fraction form
    130,021.60/195,032.40 = 103,777.60/x
  3. Step 3: Cross multiply
    130,021.60x = 195,032.40 × 103,777.60
  4. Step 4: Simplify right side
    130,021.60x = 20,239,994,394.24
  5. Step 5: Solve for x
    x = 20,239,994,394.24/130,021.60
  6. Step 6: Final answer
    x = 155,666.40

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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.