Home / 160,378.03-221,120.51-102,915.97

Finding the Fourth Proportional to 160,378.03, 221,120.51 and 102,915.97

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Solution

The fourth proportional to 160,378.03, 221,120.51 and 102,915.97 is: 141,894.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,378.03 : 221,120.51 = 102,915.97 : x
  2. Step 2: Convert to fraction form
    160,378.03/221,120.51 = 102,915.97/x
  3. Step 3: Cross multiply
    160,378.03x = 221,120.51 × 102,915.97
  4. Step 4: Simplify right side
    160,378.03x = 22,756,830,995.61
  5. Step 5: Solve for x
    x = 22,756,830,995.61/160,378.03
  6. Step 6: Final answer
    x = 141,894.94

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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.