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Finding the Fourth Proportional to 101,690.00, 140,156.93 and 67,637.60

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Solution

The fourth proportional to 101,690.00, 140,156.93 and 67,637.60 is: 93,223.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,690.00 : 140,156.93 = 67,637.60 : x
  2. Step 2: Convert to fraction form
    101,690.00/140,156.93 = 67,637.60/x
  3. Step 3: Cross multiply
    101,690.00x = 140,156.93 × 67,637.60
  4. Step 4: Simplify right side
    101,690.00x = 9,479,878,362.47
  5. Step 5: Solve for x
    x = 9,479,878,362.47/101,690.00
  6. Step 6: Final answer
    x = 93,223.31

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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.