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Finding the Fourth Proportional to 101,539.04, 140,122.16 and 56,216.16

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Solution

The fourth proportional to 101,539.04, 140,122.16 and 56,216.16 is: 77,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,539.04 : 140,122.16 = 56,216.16 : x
  2. Step 2: Convert to fraction form
    101,539.04/140,122.16 = 56,216.16/x
  3. Step 3: Cross multiply
    101,539.04x = 140,122.16 × 56,216.16
  4. Step 4: Simplify right side
    101,539.04x = 7,877,129,766.11
  5. Step 5: Solve for x
    x = 7,877,129,766.11/101,539.04
  6. Step 6: Final answer
    x = 77,577.35

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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.