Home / 501,438.12-752,158.80-127,461.12

Finding the Fourth Proportional to 501,438.12, 752,158.80 and 127,461.12

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Solution

The fourth proportional to 501,438.12, 752,158.80 and 127,461.12 is: 191,192.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,438.12 : 752,158.80 = 127,461.12 : x
  2. Step 2: Convert to fraction form
    501,438.12/752,158.80 = 127,461.12/x
  3. Step 3: Cross multiply
    501,438.12x = 752,158.80 × 127,461.12
  4. Step 4: Simplify right side
    501,438.12x = 95,871,003,065.86
  5. Step 5: Solve for x
    x = 95,871,003,065.86/501,438.12
  6. Step 6: Final answer
    x = 191,192.09

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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.