Home / 133,037.10-199,555.65-115,152.30

Finding the Fourth Proportional to 133,037.10, 199,555.65 and 115,152.30

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Solution

The fourth proportional to 133,037.10, 199,555.65 and 115,152.30 is: 172,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,037.10 : 199,555.65 = 115,152.30 : x
  2. Step 2: Convert to fraction form
    133,037.10/199,555.65 = 115,152.30/x
  3. Step 3: Cross multiply
    133,037.10x = 199,555.65 × 115,152.30
  4. Step 4: Simplify right side
    133,037.10x = 22,979,292,075.50
  5. Step 5: Solve for x
    x = 22,979,292,075.50/133,037.10
  6. Step 6: Final answer
    x = 172,728.45

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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.