Home / 113,353.20-156,365.28-70,317.81

Finding the Fourth Proportional to 113,353.20, 156,365.28 and 70,317.81

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Solution

The fourth proportional to 113,353.20, 156,365.28 and 70,317.81 is: 97,000.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,353.20 : 156,365.28 = 70,317.81 : x
  2. Step 2: Convert to fraction form
    113,353.20/156,365.28 = 70,317.81/x
  3. Step 3: Cross multiply
    113,353.20x = 156,365.28 × 70,317.81
  4. Step 4: Simplify right side
    113,353.20x = 10,995,264,049.64
  5. Step 5: Solve for x
    x = 10,995,264,049.64/113,353.20
  6. Step 6: Final answer
    x = 97,000.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.