Home / 130,255.51-179,762.26-72,900.58

Finding the Fourth Proportional to 130,255.51, 179,762.26 and 72,900.58

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Solution

The fourth proportional to 130,255.51, 179,762.26 and 72,900.58 is: 100,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,255.51 : 179,762.26 = 72,900.58 : x
  2. Step 2: Convert to fraction form
    130,255.51/179,762.26 = 72,900.58/x
  3. Step 3: Cross multiply
    130,255.51x = 179,762.26 × 72,900.58
  4. Step 4: Simplify right side
    130,255.51x = 13,104,773,016.11
  5. Step 5: Solve for x
    x = 13,104,773,016.11/130,255.51
  6. Step 6: Final answer
    x = 100,608.20

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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.