Home / 137,756.43-190,123.74-76,516.65

Finding the Fourth Proportional to 137,756.43, 190,123.74 and 76,516.65

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Solution

The fourth proportional to 137,756.43, 190,123.74 and 76,516.65 is: 105,604.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,756.43 : 190,123.74 = 76,516.65 : x
  2. Step 2: Convert to fraction form
    137,756.43/190,123.74 = 76,516.65/x
  3. Step 3: Cross multiply
    137,756.43x = 190,123.74 × 76,516.65
  4. Step 4: Simplify right side
    137,756.43x = 14,547,631,670.27
  5. Step 5: Solve for x
    x = 14,547,631,670.27/137,756.43
  6. Step 6: Final answer
    x = 105,604.01

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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.