Home / 98,890.89-136,470.08-53,568.87

Finding the Fourth Proportional to 98,890.89, 136,470.08 and 53,568.87

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Solution

The fourth proportional to 98,890.89, 136,470.08 and 53,568.87 is: 73,925.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,890.89 : 136,470.08 = 53,568.87 : x
  2. Step 2: Convert to fraction form
    98,890.89/136,470.08 = 53,568.87/x
  3. Step 3: Cross multiply
    98,890.89x = 136,470.08 × 53,568.87
  4. Step 4: Simplify right side
    98,890.89x = 7,310,547,974.41
  5. Step 5: Solve for x
    x = 7,310,547,974.41/98,890.89
  6. Step 6: Final answer
    x = 73,925.39

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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.