Home / 119,406.90-164,778.12-64,957.35

Finding the Fourth Proportional to 119,406.90, 164,778.12 and 64,957.35

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Solution

The fourth proportional to 119,406.90, 164,778.12 and 64,957.35 is: 89,639.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,406.90 : 164,778.12 = 64,957.35 : x
  2. Step 2: Convert to fraction form
    119,406.90/164,778.12 = 64,957.35/x
  3. Step 3: Cross multiply
    119,406.90x = 164,778.12 × 64,957.35
  4. Step 4: Simplify right side
    119,406.90x = 10,703,550,013.18
  5. Step 5: Solve for x
    x = 10,703,550,013.18/119,406.90
  6. Step 6: Final answer
    x = 89,639.29

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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.