Home / 103,721.40-155,582.10-33,607.80

Finding the Fourth Proportional to 103,721.40, 155,582.10 and 33,607.80

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Solution

The fourth proportional to 103,721.40, 155,582.10 and 33,607.80 is: 50,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,721.40 : 155,582.10 = 33,607.80 : x
  2. Step 2: Convert to fraction form
    103,721.40/155,582.10 = 33,607.80/x
  3. Step 3: Cross multiply
    103,721.40x = 155,582.10 × 33,607.80
  4. Step 4: Simplify right side
    103,721.40x = 5,228,772,100.38
  5. Step 5: Solve for x
    x = 5,228,772,100.38/103,721.40
  6. Step 6: Final answer
    x = 50,411.70

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1.5x scale

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.