Home / 101,557.12-140,147.11-56,234.13

Finding the Fourth Proportional to 101,557.12, 140,147.11 and 56,234.13

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Solution

The fourth proportional to 101,557.12, 140,147.11 and 56,234.13 is: 77,602.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,557.12 : 140,147.11 = 56,234.13 : x
  2. Step 2: Convert to fraction form
    101,557.12/140,147.11 = 56,234.13/x
  3. Step 3: Cross multiply
    101,557.12x = 140,147.11 × 56,234.13
  4. Step 4: Simplify right side
    101,557.12x = 7,881,050,102.13
  5. Step 5: Solve for x
    x = 7,881,050,102.13/101,557.12
  6. Step 6: Final answer
    x = 77,602.15

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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.