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Finding the Fourth Proportional to 101,317.48, 139,808.43 and 55,988.14

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Solution

The fourth proportional to 101,317.48, 139,808.43 and 55,988.14 is: 77,258.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,317.48 : 139,808.43 = 55,988.14 : x
  2. Step 2: Convert to fraction form
    101,317.48/139,808.43 = 55,988.14/x
  3. Step 3: Cross multiply
    101,317.48x = 139,808.43 × 55,988.14
  4. Step 4: Simplify right side
    101,317.48x = 7,827,613,952.02
  5. Step 5: Solve for x
    x = 7,827,613,952.02/101,317.48
  6. Step 6: Final answer
    x = 77,258.28

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1.5x scale

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.