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Finding the Fourth Proportional to 160,637.84, 221,783.40 and 103,301.68

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Solution

The fourth proportional to 160,637.84, 221,783.40 and 103,301.68 is: 142,622.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,637.84 : 221,783.40 = 103,301.68 : x
  2. Step 2: Convert to fraction form
    160,637.84/221,783.40 = 103,301.68/x
  3. Step 3: Cross multiply
    160,637.84x = 221,783.40 × 103,301.68
  4. Step 4: Simplify right side
    160,637.84x = 22,910,597,816.11
  5. Step 5: Solve for x
    x = 22,910,597,816.11/160,637.84
  6. Step 6: Final answer
    x = 142,622.67

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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.