Home / 137,307.74-189,488.21-76,891.16

Finding the Fourth Proportional to 137,307.74, 189,488.21 and 76,891.16

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Solution

The fourth proportional to 137,307.74, 189,488.21 and 76,891.16 is: 106,111.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,307.74 : 189,488.21 = 76,891.16 : x
  2. Step 2: Convert to fraction form
    137,307.74/189,488.21 = 76,891.16/x
  3. Step 3: Cross multiply
    137,307.74x = 189,488.21 × 76,891.16
  4. Step 4: Simplify right side
    137,307.74x = 14,569,966,941.33
  5. Step 5: Solve for x
    x = 14,569,966,941.33/137,307.74
  6. Step 6: Final answer
    x = 106,111.77

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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.