Home / 106,945.92-160,574.40-78,952.32

Finding the Fourth Proportional to 106,945.92, 160,574.40 and 78,952.32

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Solution

The fourth proportional to 106,945.92, 160,574.40 and 78,952.32 is: 118,543.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,945.92 : 160,574.40 = 78,952.32 : x
  2. Step 2: Convert to fraction form
    106,945.92/160,574.40 = 78,952.32/x
  3. Step 3: Cross multiply
    106,945.92x = 160,574.40 × 78,952.32
  4. Step 4: Simplify right side
    106,945.92x = 12,677,721,412.61
  5. Step 5: Solve for x
    x = 12,677,721,412.61/106,945.92
  6. Step 6: Final answer
    x = 118,543.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.