Home / 153,353.63-211,632.71-83,507.55

Finding the Fourth Proportional to 153,353.63, 211,632.71 and 83,507.55

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Solution

The fourth proportional to 153,353.63, 211,632.71 and 83,507.55 is: 115,242.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,353.63 : 211,632.71 = 83,507.55 : x
  2. Step 2: Convert to fraction form
    153,353.63/211,632.71 = 83,507.55/x
  3. Step 3: Cross multiply
    153,353.63x = 211,632.71 × 83,507.55
  4. Step 4: Simplify right side
    153,353.63x = 17,672,928,694.42
  5. Step 5: Solve for x
    x = 17,672,928,694.42/153,353.63
  6. Step 6: Final answer
    x = 115,242.98

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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.