Home / 153,127.20-211,316.13-85,150.38

Finding the Fourth Proportional to 153,127.20, 211,316.13 and 85,150.38

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Solution

The fourth proportional to 153,127.20, 211,316.13 and 85,150.38 is: 117,507.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,127.20 : 211,316.13 = 85,150.38 : x
  2. Step 2: Convert to fraction form
    153,127.20/211,316.13 = 85,150.38/x
  3. Step 3: Cross multiply
    153,127.20x = 211,316.13 × 85,150.38
  4. Step 4: Simplify right side
    153,127.20x = 17,993,648,769.63
  5. Step 5: Solve for x
    x = 17,993,648,769.63/153,127.20
  6. Step 6: Final answer
    x = 117,507.85

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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.