Home / 130,901.46-180,651.60-98,578.20

Finding the Fourth Proportional to 130,901.46, 180,651.60 and 98,578.20

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Solution

The fourth proportional to 130,901.46, 180,651.60 and 98,578.20 is: 136,043.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,901.46 : 180,651.60 = 98,578.20 : x
  2. Step 2: Convert to fraction form
    130,901.46/180,651.60 = 98,578.20/x
  3. Step 3: Cross multiply
    130,901.46x = 180,651.60 × 98,578.20
  4. Step 4: Simplify right side
    130,901.46x = 17,808,309,555.12
  5. Step 5: Solve for x
    x = 17,808,309,555.12/130,901.46
  6. Step 6: Final answer
    x = 136,043.63

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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.