Home / 157,119.48-216,829.45-85,504.12

Finding the Fourth Proportional to 157,119.48, 216,829.45 and 85,504.12

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Solution

The fourth proportional to 157,119.48, 216,829.45 and 85,504.12 is: 117,998.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,119.48 : 216,829.45 = 85,504.12 : x
  2. Step 2: Convert to fraction form
    157,119.48/216,829.45 = 85,504.12/x
  3. Step 3: Cross multiply
    157,119.48x = 216,829.45 × 85,504.12
  4. Step 4: Simplify right side
    157,119.48x = 18,539,810,884.81
  5. Step 5: Solve for x
    x = 18,539,810,884.81/157,119.48
  6. Step 6: Final answer
    x = 117,998.17

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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.