Home / 107,434.48-161,082.60-70,455.28

Finding the Fourth Proportional to 107,434.48, 161,082.60 and 70,455.28

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Solution

The fourth proportional to 107,434.48, 161,082.60 and 70,455.28 is: 105,637.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,434.48 : 161,082.60 = 70,455.28 : x
  2. Step 2: Convert to fraction form
    107,434.48/161,082.60 = 70,455.28/x
  3. Step 3: Cross multiply
    107,434.48x = 161,082.60 × 70,455.28
  4. Step 4: Simplify right side
    107,434.48x = 11,349,119,686.13
  5. Step 5: Solve for x
    x = 11,349,119,686.13/107,434.48
  6. Step 6: Final answer
    x = 105,637.59

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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.