Home / 123,071.13-169,838.24-66,482.51

Finding the Fourth Proportional to 123,071.13, 169,838.24 and 66,482.51

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Solution

The fourth proportional to 123,071.13, 169,838.24 and 66,482.51 is: 91,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,071.13 : 169,838.24 = 66,482.51 : x
  2. Step 2: Convert to fraction form
    123,071.13/169,838.24 = 66,482.51/x
  3. Step 3: Cross multiply
    123,071.13x = 169,838.24 × 66,482.51
  4. Step 4: Simplify right side
    123,071.13x = 11,291,271,307.58
  5. Step 5: Solve for x
    x = 11,291,271,307.58/123,071.13
  6. Step 6: Final answer
    x = 91,745.90

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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.