Home / 103,937.17-155,835.70-83,971.23

Finding the Fourth Proportional to 103,937.17, 155,835.70 and 83,971.23

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Solution

The fourth proportional to 103,937.17, 155,835.70 and 83,971.23 is: 125,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,937.17 : 155,835.70 = 83,971.23 : x
  2. Step 2: Convert to fraction form
    103,937.17/155,835.70 = 83,971.23/x
  3. Step 3: Cross multiply
    103,937.17x = 155,835.70 × 83,971.23
  4. Step 4: Simplify right side
    103,937.17x = 13,085,715,406.91
  5. Step 5: Solve for x
    x = 13,085,715,406.91/103,937.17
  6. Step 6: Final answer
    x = 125,900.25

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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.