Home / 153,353.13-211,632.02-83,507.05

Finding the Fourth Proportional to 153,353.13, 211,632.02 and 83,507.05

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Solution

The fourth proportional to 153,353.13, 211,632.02 and 83,507.05 is: 115,242.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,353.13 : 211,632.02 = 83,507.05 : x
  2. Step 2: Convert to fraction form
    153,353.13/211,632.02 = 83,507.05/x
  3. Step 3: Cross multiply
    153,353.13x = 211,632.02 × 83,507.05
  4. Step 4: Simplify right side
    153,353.13x = 17,672,765,675.74
  5. Step 5: Solve for x
    x = 17,672,765,675.74/153,353.13
  6. Step 6: Final answer
    x = 115,242.29

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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.