Home / 121,977.24-168,346.30-70,284.28

Finding the Fourth Proportional to 121,977.24, 168,346.30 and 70,284.28

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Solution

The fourth proportional to 121,977.24, 168,346.30 and 70,284.28 is: 97,002.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,977.24 : 168,346.30 = 70,284.28 : x
  2. Step 2: Convert to fraction form
    121,977.24/168,346.30 = 70,284.28/x
  3. Step 3: Cross multiply
    121,977.24x = 168,346.30 × 70,284.28
  4. Step 4: Simplify right side
    121,977.24x = 11,832,098,486.16
  5. Step 5: Solve for x
    x = 11,832,098,486.16/121,977.24
  6. Step 6: Final answer
    x = 97,002.51

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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.