Home / 130,220.48-179,671.84-75,781.60

Finding the Fourth Proportional to 130,220.48, 179,671.84 and 75,781.60

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Solution

The fourth proportional to 130,220.48, 179,671.84 and 75,781.60 is: 104,559.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,220.48 : 179,671.84 = 75,781.60 : x
  2. Step 2: Convert to fraction form
    130,220.48/179,671.84 = 75,781.60/x
  3. Step 3: Cross multiply
    130,220.48x = 179,671.84 × 75,781.60
  4. Step 4: Simplify right side
    130,220.48x = 13,615,819,510.14
  5. Step 5: Solve for x
    x = 13,615,819,510.14/130,220.48
  6. Step 6: Final answer
    x = 104,559.74

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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.