Home / 115,442.18-159,308.65-64,455.69

Finding the Fourth Proportional to 115,442.18, 159,308.65 and 64,455.69

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Solution

The fourth proportional to 115,442.18, 159,308.65 and 64,455.69 is: 88,947.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,442.18 : 159,308.65 = 64,455.69 : x
  2. Step 2: Convert to fraction form
    115,442.18/159,308.65 = 64,455.69/x
  3. Step 3: Cross multiply
    115,442.18x = 159,308.65 × 64,455.69
  4. Step 4: Simplify right side
    115,442.18x = 10,268,348,378.02
  5. Step 5: Solve for x
    x = 10,268,348,378.02/115,442.18
  6. Step 6: Final answer
    x = 88,947.98

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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.