Home / 130,577.47-179,023.37-128,215.51

Finding the Fourth Proportional to 130,577.47, 179,023.37 and 128,215.51

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Solution

The fourth proportional to 130,577.47, 179,023.37 and 128,215.51 is: 175,785.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,577.47 : 179,023.37 = 128,215.51 : x
  2. Step 2: Convert to fraction form
    130,577.47/179,023.37 = 128,215.51/x
  3. Step 3: Cross multiply
    130,577.47x = 179,023.37 × 128,215.51
  4. Step 4: Simplify right side
    130,577.47x = 22,953,571,597.83
  5. Step 5: Solve for x
    x = 22,953,571,597.83/130,577.47
  6. Step 6: Final answer
    x = 175,785.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.