Home / 130,513.11-180,092.05-79,507.33

Finding the Fourth Proportional to 130,513.11, 180,092.05 and 79,507.33

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Solution

The fourth proportional to 130,513.11, 180,092.05 and 79,507.33 is: 109,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,513.11 : 180,092.05 = 79,507.33 : x
  2. Step 2: Convert to fraction form
    130,513.11/180,092.05 = 79,507.33/x
  3. Step 3: Cross multiply
    130,513.11x = 180,092.05 × 79,507.33
  4. Step 4: Simplify right side
    130,513.11x = 14,318,638,076.07
  5. Step 5: Solve for x
    x = 14,318,638,076.07/130,513.11
  6. Step 6: Final answer
    x = 109,710.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.