Home / 115,133.50-172,692.33-70,767.10

Finding the Fourth Proportional to 115,133.50, 172,692.33 and 70,767.10

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Solution

The fourth proportional to 115,133.50, 172,692.33 and 70,767.10 is: 106,145.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,133.50 : 172,692.33 = 70,767.10 : x
  2. Step 2: Convert to fraction form
    115,133.50/172,692.33 = 70,767.10/x
  3. Step 3: Cross multiply
    115,133.50x = 172,692.33 × 70,767.10
  4. Step 4: Simplify right side
    115,133.50x = 12,220,935,386.34
  5. Step 5: Solve for x
    x = 12,220,935,386.34/115,133.50
  6. Step 6: Final answer
    x = 106,145.78

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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.