Home / 260,125.25-390,008.60-102,371.81

Finding the Fourth Proportional to 260,125.25, 390,008.60 and 102,371.81

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Solution

The fourth proportional to 260,125.25, 390,008.60 and 102,371.81 is: 153,487.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,125.25 : 390,008.60 = 102,371.81 : x
  2. Step 2: Convert to fraction form
    260,125.25/390,008.60 = 102,371.81/x
  3. Step 3: Cross multiply
    260,125.25x = 390,008.60 × 102,371.81
  4. Step 4: Simplify right side
    260,125.25x = 39,925,885,785.71
  5. Step 5: Solve for x
    x = 39,925,885,785.71/260,125.25
  6. Step 6: Final answer
    x = 153,487.16

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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.