Home / 107,738.02-161,386.71-87,818.50

Finding the Fourth Proportional to 107,738.02, 161,386.71 and 87,818.50

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Solution

The fourth proportional to 107,738.02, 161,386.71 and 87,818.50 is: 131,548.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,738.02 : 161,386.71 = 87,818.50 : x
  2. Step 2: Convert to fraction form
    107,738.02/161,386.71 = 87,818.50/x
  3. Step 3: Cross multiply
    107,738.02x = 161,386.71 × 87,818.50
  4. Step 4: Simplify right side
    107,738.02x = 14,172,738,792.14
  5. Step 5: Solve for x
    x = 14,172,738,792.14/107,738.02
  6. Step 6: Final answer
    x = 131,548.16

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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.