Home / 98,684.47-147,970.04-38,642.65

Finding the Fourth Proportional to 98,684.47, 147,970.04 and 38,642.65

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Solution

The fourth proportional to 98,684.47, 147,970.04 and 38,642.65 is: 57,941.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,684.47 : 147,970.04 = 38,642.65 : x
  2. Step 2: Convert to fraction form
    98,684.47/147,970.04 = 38,642.65/x
  3. Step 3: Cross multiply
    98,684.47x = 147,970.04 × 38,642.65
  4. Step 4: Simplify right side
    98,684.47x = 5,717,954,491.54
  5. Step 5: Solve for x
    x = 5,717,954,491.54/98,684.47
  6. Step 6: Final answer
    x = 57,941.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.