Home / 103,423.41-155,009.70-47,186.46

Finding the Fourth Proportional to 103,423.41, 155,009.70 and 47,186.46

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Solution

The fourth proportional to 103,423.41, 155,009.70 and 47,186.46 is: 70,722.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,423.41 : 155,009.70 = 47,186.46 : x
  2. Step 2: Convert to fraction form
    103,423.41/155,009.70 = 47,186.46/x
  3. Step 3: Cross multiply
    103,423.41x = 155,009.70 × 47,186.46
  4. Step 4: Simplify right side
    103,423.41x = 7,314,359,008.66
  5. Step 5: Solve for x
    x = 7,314,359,008.66/103,423.41
  6. Step 6: Final answer
    x = 70,722.47

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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.