Home / 157,147.05-216,867.54-85,531.71

Finding the Fourth Proportional to 157,147.05, 216,867.54 and 85,531.71

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Solution

The fourth proportional to 157,147.05, 216,867.54 and 85,531.71 is: 118,036.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,147.05 : 216,867.54 = 85,531.71 : x
  2. Step 2: Convert to fraction form
    157,147.05/216,867.54 = 85,531.71/x
  3. Step 3: Cross multiply
    157,147.05x = 216,867.54 × 85,531.71
  4. Step 4: Simplify right side
    157,147.05x = 18,549,052,673.69
  5. Step 5: Solve for x
    x = 18,549,052,673.69/157,147.05
  6. Step 6: Final answer
    x = 118,036.27

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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.