Home / 104,162.40-155,328.93-103,215.15

Finding the Fourth Proportional to 104,162.40, 155,328.93 and 103,215.15

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Solution

The fourth proportional to 104,162.40, 155,328.93 and 103,215.15 is: 153,916.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,162.40 : 155,328.93 = 103,215.15 : x
  2. Step 2: Convert to fraction form
    104,162.40/155,328.93 = 103,215.15/x
  3. Step 3: Cross multiply
    104,162.40x = 155,328.93 × 103,215.15
  4. Step 4: Simplify right side
    104,162.40x = 16,032,298,809.29
  5. Step 5: Solve for x
    x = 16,032,298,809.29/104,162.40
  6. Step 6: Final answer
    x = 153,916.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.