Home / 154,972.98-213,829.29-101,336.76

Finding the Fourth Proportional to 154,972.98, 213,829.29 and 101,336.76

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Solution

The fourth proportional to 154,972.98, 213,829.29 and 101,336.76 is: 139,822.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,972.98 : 213,829.29 = 101,336.76 : x
  2. Step 2: Convert to fraction form
    154,972.98/213,829.29 = 101,336.76/x
  3. Step 3: Cross multiply
    154,972.98x = 213,829.29 × 101,336.76
  4. Step 4: Simplify right side
    154,972.98x = 21,668,767,441.70
  5. Step 5: Solve for x
    x = 21,668,767,441.70/154,972.98
  6. Step 6: Final answer
    x = 139,822.87

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1.5x scale

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.