Home / 120,866.16-181,186.55-40,848.17

Finding the Fourth Proportional to 120,866.16, 181,186.55 and 40,848.17

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Solution

The fourth proportional to 120,866.16, 181,186.55 and 40,848.17 is: 61,234.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,866.16 : 181,186.55 = 40,848.17 : x
  2. Step 2: Convert to fraction form
    120,866.16/181,186.55 = 40,848.17/x
  3. Step 3: Cross multiply
    120,866.16x = 181,186.55 × 40,848.17
  4. Step 4: Simplify right side
    120,866.16x = 7,401,139,625.32
  5. Step 5: Solve for x
    x = 7,401,139,625.32/120,866.16
  6. Step 6: Final answer
    x = 61,234.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.