Home / 116,623.68-160,938.72-65,636.40

Finding the Fourth Proportional to 116,623.68, 160,938.72 and 65,636.40

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Solution

The fourth proportional to 116,623.68, 160,938.72 and 65,636.40 is: 90,577.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,623.68 : 160,938.72 = 65,636.40 : x
  2. Step 2: Convert to fraction form
    116,623.68/160,938.72 = 65,636.40/x
  3. Step 3: Cross multiply
    116,623.68x = 160,938.72 × 65,636.40
  4. Step 4: Simplify right side
    116,623.68x = 10,563,438,201.41
  5. Step 5: Solve for x
    x = 10,563,438,201.41/116,623.68
  6. Step 6: Final answer
    x = 90,577.13

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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.