Home / 124,692.36-172,071.18-70,979.64

Finding the Fourth Proportional to 124,692.36, 172,071.18 and 70,979.64

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Solution

The fourth proportional to 124,692.36, 172,071.18 and 70,979.64 is: 97,949.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,692.36 : 172,071.18 = 70,979.64 : x
  2. Step 2: Convert to fraction form
    124,692.36/172,071.18 = 70,979.64/x
  3. Step 3: Cross multiply
    124,692.36x = 172,071.18 × 70,979.64
  4. Step 4: Simplify right side
    124,692.36x = 12,213,550,410.78
  5. Step 5: Solve for x
    x = 12,213,550,410.78/124,692.36
  6. Step 6: Final answer
    x = 97,949.47

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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.