Home / 130,055.88-179,562.79-87,090.45

Finding the Fourth Proportional to 130,055.88, 179,562.79 and 87,090.45

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Solution

The fourth proportional to 130,055.88, 179,562.79 and 87,090.45 is: 120,242.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,055.88 : 179,562.79 = 87,090.45 : x
  2. Step 2: Convert to fraction form
    130,055.88/179,562.79 = 87,090.45/x
  3. Step 3: Cross multiply
    130,055.88x = 179,562.79 × 87,090.45
  4. Step 4: Simplify right side
    130,055.88x = 15,638,204,184.36
  5. Step 5: Solve for x
    x = 15,638,204,184.36/130,055.88
  6. Step 6: Final answer
    x = 120,242.19

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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.