Home / 140,904.04-194,448.74-77,247.72

Finding the Fourth Proportional to 140,904.04, 194,448.74 and 77,247.72

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Solution

The fourth proportional to 140,904.04, 194,448.74 and 77,247.72 is: 106,602.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,904.04 : 194,448.74 = 77,247.72 : x
  2. Step 2: Convert to fraction form
    140,904.04/194,448.74 = 77,247.72/x
  3. Step 3: Cross multiply
    140,904.04x = 194,448.74 × 77,247.72
  4. Step 4: Simplify right side
    140,904.04x = 15,020,721,821.87
  5. Step 5: Solve for x
    x = 15,020,721,821.87/140,904.04
  6. Step 6: Final answer
    x = 106,602.49

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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.