Home / 160,665.96-221,712.94-89,047.20

Finding the Fourth Proportional to 160,665.96, 221,712.94 and 89,047.20

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Solution

The fourth proportional to 160,665.96, 221,712.94 and 89,047.20 is: 122,881.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,665.96 : 221,712.94 = 89,047.20 : x
  2. Step 2: Convert to fraction form
    160,665.96/221,712.94 = 89,047.20/x
  3. Step 3: Cross multiply
    160,665.96x = 221,712.94 × 89,047.20
  4. Step 4: Simplify right side
    160,665.96x = 19,742,916,510.77
  5. Step 5: Solve for x
    x = 19,742,916,510.77/160,665.96
  6. Step 6: Final answer
    x = 122,881.76

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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.