Home / 92,435.91-138,289.05-70,011.20

Finding the Fourth Proportional to 92,435.91, 138,289.05 and 70,011.20

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Solution

The fourth proportional to 92,435.91, 138,289.05 and 70,011.20 is: 104,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,435.91 : 138,289.05 = 70,011.20 : x
  2. Step 2: Convert to fraction form
    92,435.91/138,289.05 = 70,011.20/x
  3. Step 3: Cross multiply
    92,435.91x = 138,289.05 × 70,011.20
  4. Step 4: Simplify right side
    92,435.91x = 9,681,782,337.36
  5. Step 5: Solve for x
    x = 9,681,782,337.36/92,435.91
  6. Step 6: Final answer
    x = 104,740.49

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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.