Home / 130,219.60-179,719.62-72,862.16

Finding the Fourth Proportional to 130,219.60, 179,719.62 and 72,862.16

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Solution

The fourth proportional to 130,219.60, 179,719.62 and 72,862.16 is: 100,559.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,219.60 : 179,719.62 = 72,862.16 : x
  2. Step 2: Convert to fraction form
    130,219.60/179,719.62 = 72,862.16/x
  3. Step 3: Cross multiply
    130,219.60x = 179,719.62 × 72,862.16
  4. Step 4: Simplify right side
    130,219.60x = 13,094,759,707.58
  5. Step 5: Solve for x
    x = 13,094,759,707.58/130,219.60
  6. Step 6: Final answer
    x = 100,559.05

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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.