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Finding the Fourth Proportional to 101,362.46, 139,888.80 and 58,918.28

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Solution

The fourth proportional to 101,362.46, 139,888.80 and 58,918.28 is: 81,312.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,362.46 : 139,888.80 = 58,918.28 : x
  2. Step 2: Convert to fraction form
    101,362.46/139,888.80 = 58,918.28/x
  3. Step 3: Cross multiply
    101,362.46x = 139,888.80 × 58,918.28
  4. Step 4: Simplify right side
    101,362.46x = 8,242,007,487.26
  5. Step 5: Solve for x
    x = 8,242,007,487.26/101,362.46
  6. Step 6: Final answer
    x = 81,312.23

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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.