Home / 103,844.79-155,905.25-70,223.76

Finding the Fourth Proportional to 103,844.79, 155,905.25 and 70,223.76

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Solution

The fourth proportional to 103,844.79, 155,905.25 and 70,223.76 is: 105,429.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,844.79 : 155,905.25 = 70,223.76 : x
  2. Step 2: Convert to fraction form
    103,844.79/155,905.25 = 70,223.76/x
  3. Step 3: Cross multiply
    103,844.79x = 155,905.25 × 70,223.76
  4. Step 4: Simplify right side
    103,844.79x = 10,948,252,507.62
  5. Step 5: Solve for x
    x = 10,948,252,507.62/103,844.79
  6. Step 6: Final answer
    x = 105,429.00

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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.