Home / 116,129.16-160,249.05-65,135.07

Finding the Fourth Proportional to 116,129.16, 160,249.05 and 65,135.07

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Solution

The fourth proportional to 116,129.16, 160,249.05 and 65,135.07 is: 89,881.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,129.16 : 160,249.05 = 65,135.07 : x
  2. Step 2: Convert to fraction form
    116,129.16/160,249.05 = 65,135.07/x
  3. Step 3: Cross multiply
    116,129.16x = 160,249.05 × 65,135.07
  4. Step 4: Simplify right side
    116,129.16x = 10,437,833,089.18
  5. Step 5: Solve for x
    x = 10,437,833,089.18/116,129.16
  6. Step 6: Final answer
    x = 89,881.24

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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.