Home / 101,472.24-152,209.40-45,315.21

Finding the Fourth Proportional to 101,472.24, 152,209.40 and 45,315.21

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Solution

The fourth proportional to 101,472.24, 152,209.40 and 45,315.21 is: 67,973.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,472.24 : 152,209.40 = 45,315.21 : x
  2. Step 2: Convert to fraction form
    101,472.24/152,209.40 = 45,315.21/x
  3. Step 3: Cross multiply
    101,472.24x = 152,209.40 × 45,315.21
  4. Step 4: Simplify right side
    101,472.24x = 6,897,400,657.74
  5. Step 5: Solve for x
    x = 6,897,400,657.74/101,472.24
  6. Step 6: Final answer
    x = 67,973.28

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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.