Home / 116,403.88-160,595.28-76,140.64

Finding the Fourth Proportional to 116,403.88, 160,595.28 and 76,140.64

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Solution

The fourth proportional to 116,403.88, 160,595.28 and 76,140.64 is: 105,046.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,403.88 : 160,595.28 = 76,140.64 : x
  2. Step 2: Convert to fraction form
    116,403.88/160,595.28 = 76,140.64/x
  3. Step 3: Cross multiply
    116,403.88x = 160,595.28 × 76,140.64
  4. Step 4: Simplify right side
    116,403.88x = 12,227,827,400.18
  5. Step 5: Solve for x
    x = 12,227,827,400.18/116,403.88
  6. Step 6: Final answer
    x = 105,046.56

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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.