Home / 125,172.38-172,736.78-67,810.40

Finding the Fourth Proportional to 125,172.38, 172,736.78 and 67,810.40

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Solution

The fourth proportional to 125,172.38, 172,736.78 and 67,810.40 is: 93,577.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,172.38 : 172,736.78 = 67,810.40 : x
  2. Step 2: Convert to fraction form
    125,172.38/172,736.78 = 67,810.40/x
  3. Step 3: Cross multiply
    125,172.38x = 172,736.78 × 67,810.40
  4. Step 4: Simplify right side
    125,172.38x = 11,713,350,146.51
  5. Step 5: Solve for x
    x = 11,713,350,146.51/125,172.38
  6. Step 6: Final answer
    x = 93,577.75

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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.