Home / 119,312.20-164,651.90-64,864.48

Finding the Fourth Proportional to 119,312.20, 164,651.90 and 64,864.48

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Solution

The fourth proportional to 119,312.20, 164,651.90 and 64,864.48 is: 89,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,312.20 : 164,651.90 = 64,864.48 : x
  2. Step 2: Convert to fraction form
    119,312.20/164,651.90 = 64,864.48/x
  3. Step 3: Cross multiply
    119,312.20x = 164,651.90 × 64,864.48
  4. Step 4: Simplify right side
    119,312.20x = 10,680,059,874.51
  5. Step 5: Solve for x
    x = 10,680,059,874.51/119,312.20
  6. Step 6: Final answer
    x = 89,513.56

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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.