Home / 130,018.40-194,808.90-111,210.20

Finding the Fourth Proportional to 130,018.40, 194,808.90 and 111,210.20

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Solution

The fourth proportional to 130,018.40, 194,808.90 and 111,210.20 is: 166,628.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,018.40 : 194,808.90 = 111,210.20 : x
  2. Step 2: Convert to fraction form
    130,018.40/194,808.90 = 111,210.20/x
  3. Step 3: Cross multiply
    130,018.40x = 194,808.90 × 111,210.20
  4. Step 4: Simplify right side
    130,018.40x = 21,664,736,730.78
  5. Step 5: Solve for x
    x = 21,664,736,730.78/130,018.40
  6. Step 6: Final answer
    x = 166,628.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.