Home / 130,477.40-195,716.10-112,981.40

Finding the Fourth Proportional to 130,477.40, 195,716.10 and 112,981.40

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Solution

The fourth proportional to 130,477.40, 195,716.10 and 112,981.40 is: 169,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,477.40 : 195,716.10 = 112,981.40 : x
  2. Step 2: Convert to fraction form
    130,477.40/195,716.10 = 112,981.40/x
  3. Step 3: Cross multiply
    130,477.40x = 195,716.10 × 112,981.40
  4. Step 4: Simplify right side
    130,477.40x = 22,112,278,980.54
  5. Step 5: Solve for x
    x = 22,112,278,980.54/130,477.40
  6. Step 6: Final answer
    x = 169,472.10

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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.