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Finding the Fourth Proportional to 116,507.73, 160,779.14 and 65,520.45

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Solution

The fourth proportional to 116,507.73, 160,779.14 and 65,520.45 is: 90,417.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,507.73 : 160,779.14 = 65,520.45 : x
  2. Step 2: Convert to fraction form
    116,507.73/160,779.14 = 65,520.45/x
  3. Step 3: Cross multiply
    116,507.73x = 160,779.14 × 65,520.45
  4. Step 4: Simplify right side
    116,507.73x = 10,534,321,603.41
  5. Step 5: Solve for x
    x = 10,534,321,603.41/116,507.73
  6. Step 6: Final answer
    x = 90,417.36

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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.