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Finding the Fourth Proportional to 101,572.05, 140,023.35 and 71,263.47

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Solution

The fourth proportional to 101,572.05, 140,023.35 and 71,263.47 is: 98,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,572.05 : 140,023.35 = 71,263.47 : x
  2. Step 2: Convert to fraction form
    101,572.05/140,023.35 = 71,263.47/x
  3. Step 3: Cross multiply
    101,572.05x = 140,023.35 × 71,263.47
  4. Step 4: Simplify right side
    101,572.05x = 9,978,549,802.02
  5. Step 5: Solve for x
    x = 9,978,549,802.02/101,572.05
  6. Step 6: Final answer
    x = 98,241.10

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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.