Home / 130,203.10-179,696.81-72,845.62

Finding the Fourth Proportional to 130,203.10, 179,696.81 and 72,845.62

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Solution

The fourth proportional to 130,203.10, 179,696.81 and 72,845.62 is: 100,536.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,203.10 : 179,696.81 = 72,845.62 : x
  2. Step 2: Convert to fraction form
    130,203.10/179,696.81 = 72,845.62/x
  3. Step 3: Cross multiply
    130,203.10x = 179,696.81 × 72,845.62
  4. Step 4: Simplify right side
    130,203.10x = 13,090,125,536.47
  5. Step 5: Solve for x
    x = 13,090,125,536.47/130,203.10
  6. Step 6: Final answer
    x = 100,536.20

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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.