Home / 103,865.34-155,936.40-70,244.32

Finding the Fourth Proportional to 103,865.34, 155,936.40 and 70,244.32

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Solution

The fourth proportional to 103,865.34, 155,936.40 and 70,244.32 is: 105,460.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,865.34 : 155,936.40 = 70,244.32 : x
  2. Step 2: Convert to fraction form
    103,865.34/155,936.40 = 70,244.32/x
  3. Step 3: Cross multiply
    103,865.34x = 155,936.40 × 70,244.32
  4. Step 4: Simplify right side
    103,865.34x = 10,953,646,381.25
  5. Step 5: Solve for x
    x = 10,953,646,381.25/103,865.34
  6. Step 6: Final answer
    x = 105,460.07

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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.