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Finding the Fourth Proportional to 100,510.34, 138,693.92 and 60,223.07

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Solution

The fourth proportional to 100,510.34, 138,693.92 and 60,223.07 is: 83,101.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,510.34 : 138,693.92 = 60,223.07 : x
  2. Step 2: Convert to fraction form
    100,510.34/138,693.92 = 60,223.07/x
  3. Step 3: Cross multiply
    100,510.34x = 138,693.92 × 60,223.07
  4. Step 4: Simplify right side
    100,510.34x = 8,352,573,647.03
  5. Step 5: Solve for x
    x = 8,352,573,647.03/100,510.34
  6. Step 6: Final answer
    x = 83,101.63

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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.