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Finding the Fourth Proportional to 125,034.93, 172,628.69 and 111,583.08

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Solution

The fourth proportional to 125,034.93, 172,628.69 and 111,583.08 is: 154,056.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,034.93 : 172,628.69 = 111,583.08 : x
  2. Step 2: Convert to fraction form
    125,034.93/172,628.69 = 111,583.08/x
  3. Step 3: Cross multiply
    125,034.93x = 172,628.69 × 111,583.08
  4. Step 4: Simplify right side
    125,034.93x = 19,262,440,368.65
  5. Step 5: Solve for x
    x = 19,262,440,368.65/125,034.93
  6. Step 6: Final answer
    x = 154,056.47

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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.