Home / 115,421.28-173,209.68-45,292.32

Finding the Fourth Proportional to 115,421.28, 173,209.68 and 45,292.32

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Solution

The fourth proportional to 115,421.28, 173,209.68 and 45,292.32 is: 67,968.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,421.28 : 173,209.68 = 45,292.32 : x
  2. Step 2: Convert to fraction form
    115,421.28/173,209.68 = 45,292.32/x
  3. Step 3: Cross multiply
    115,421.28x = 173,209.68 × 45,292.32
  4. Step 4: Simplify right side
    115,421.28x = 7,845,068,253.66
  5. Step 5: Solve for x
    x = 7,845,068,253.66/115,421.28
  6. Step 6: Final answer
    x = 67,968.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.