Home / 97,999.20-147,011.76-31,417.20

Finding the Fourth Proportional to 97,999.20, 147,011.76 and 31,417.20

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Solution

The fourth proportional to 97,999.20, 147,011.76 and 31,417.20 is: 47,129.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,999.20 : 147,011.76 = 31,417.20 : x
  2. Step 2: Convert to fraction form
    97,999.20/147,011.76 = 31,417.20/x
  3. Step 3: Cross multiply
    97,999.20x = 147,011.76 × 31,417.20
  4. Step 4: Simplify right side
    97,999.20x = 4,618,697,866.27
  5. Step 5: Solve for x
    x = 4,618,697,866.27/97,999.20
  6. Step 6: Final answer
    x = 47,129.95

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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.