Home / 130,801.62-180,500.06-72,662.10

Finding the Fourth Proportional to 130,801.62, 180,500.06 and 72,662.10

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Solution

The fourth proportional to 130,801.62, 180,500.06 and 72,662.10 is: 100,270.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,801.62 : 180,500.06 = 72,662.10 : x
  2. Step 2: Convert to fraction form
    130,801.62/180,500.06 = 72,662.10/x
  3. Step 3: Cross multiply
    130,801.62x = 180,500.06 × 72,662.10
  4. Step 4: Simplify right side
    130,801.62x = 13,115,513,409.73
  5. Step 5: Solve for x
    x = 13,115,513,409.73/130,801.62
  6. Step 6: Final answer
    x = 100,270.27

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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.