Home / 160,281.05-221,288.63-102,943.49

Finding the Fourth Proportional to 160,281.05, 221,288.63 and 102,943.49

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Solution

The fourth proportional to 160,281.05, 221,288.63 and 102,943.49 is: 142,126.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,281.05 : 221,288.63 = 102,943.49 : x
  2. Step 2: Convert to fraction form
    160,281.05/221,288.63 = 102,943.49/x
  3. Step 3: Cross multiply
    160,281.05x = 221,288.63 × 102,943.49
  4. Step 4: Simplify right side
    160,281.05x = 22,780,222,248.36
  5. Step 5: Solve for x
    x = 22,780,222,248.36/160,281.05
  6. Step 6: Final answer
    x = 142,126.74

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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.