Home / 101,381.03-139,904.36-56,058.02

Finding the Fourth Proportional to 101,381.03, 139,904.36 and 56,058.02

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Solution

The fourth proportional to 101,381.03, 139,904.36 and 56,058.02 is: 77,359.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,381.03 : 139,904.36 = 56,058.02 : x
  2. Step 2: Convert to fraction form
    101,381.03/139,904.36 = 56,058.02/x
  3. Step 3: Cross multiply
    101,381.03x = 139,904.36 × 56,058.02
  4. Step 4: Simplify right side
    101,381.03x = 7,842,761,376.23
  5. Step 5: Solve for x
    x = 7,842,761,376.23/101,381.03
  6. Step 6: Final answer
    x = 77,359.26

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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.