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Finding the Fourth Proportional to 160,021.47, 220,828.93 and 88,401.49

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Solution

The fourth proportional to 160,021.47, 220,828.93 and 88,401.49 is: 121,993.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,021.47 : 220,828.93 = 88,401.49 : x
  2. Step 2: Convert to fraction form
    160,021.47/220,828.93 = 88,401.49/x
  3. Step 3: Cross multiply
    160,021.47x = 220,828.93 × 88,401.49
  4. Step 4: Simplify right side
    160,021.47x = 19,521,606,447.11
  5. Step 5: Solve for x
    x = 19,521,606,447.11/160,021.47
  6. Step 6: Final answer
    x = 121,993.67

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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.