Home / 103,877.03-155,689.45-47,639.01

Finding the Fourth Proportional to 103,877.03, 155,689.45 and 47,639.01

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Solution

The fourth proportional to 103,877.03, 155,689.45 and 47,639.01 is: 71,400.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,877.03 : 155,689.45 = 47,639.01 : x
  2. Step 2: Convert to fraction form
    103,877.03/155,689.45 = 47,639.01/x
  3. Step 3: Cross multiply
    103,877.03x = 155,689.45 × 47,639.01
  4. Step 4: Simplify right side
    103,877.03x = 7,416,891,627.27
  5. Step 5: Solve for x
    x = 7,416,891,627.27/103,877.03
  6. Step 6: Final answer
    x = 71,400.69

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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.