Home / 97,426.20-146,139.30-31,762.20

Finding the Fourth Proportional to 97,426.20, 146,139.30 and 31,762.20

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Solution

The fourth proportional to 97,426.20, 146,139.30 and 31,762.20 is: 47,643.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,426.20 : 146,139.30 = 31,762.20 : x
  2. Step 2: Convert to fraction form
    97,426.20/146,139.30 = 31,762.20/x
  3. Step 3: Cross multiply
    97,426.20x = 146,139.30 × 31,762.20
  4. Step 4: Simplify right side
    97,426.20x = 4,641,705,674.46
  5. Step 5: Solve for x
    x = 4,641,705,674.46/97,426.20
  6. Step 6: Final answer
    x = 47,643.30

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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.