Home / 137,506.02-189,767.07-77,076.68

Finding the Fourth Proportional to 137,506.02, 189,767.07 and 77,076.68

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Solution

The fourth proportional to 137,506.02, 189,767.07 and 77,076.68 is: 106,370.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,506.02 : 189,767.07 = 77,076.68 : x
  2. Step 2: Convert to fraction form
    137,506.02/189,767.07 = 77,076.68/x
  3. Step 3: Cross multiply
    137,506.02x = 189,767.07 × 77,076.68
  4. Step 4: Simplify right side
    137,506.02x = 14,626,614,780.09
  5. Step 5: Solve for x
    x = 14,626,614,780.09/137,506.02
  6. Step 6: Final answer
    x = 106,370.72

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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.