Home / 107,436.48-161,085.60-70,457.28

Finding the Fourth Proportional to 107,436.48, 161,085.60 and 70,457.28

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Solution

The fourth proportional to 107,436.48, 161,085.60 and 70,457.28 is: 105,640.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,436.48 : 161,085.60 = 70,457.28 : x
  2. Step 2: Convert to fraction form
    107,436.48/161,085.60 = 70,457.28/x
  3. Step 3: Cross multiply
    107,436.48x = 161,085.60 × 70,457.28
  4. Step 4: Simplify right side
    107,436.48x = 11,349,653,223.17
  5. Step 5: Solve for x
    x = 11,349,653,223.17/107,436.48
  6. Step 6: Final answer
    x = 105,640.59

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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.