Home / 120,981.74-181,509.54-61,858.93

Finding the Fourth Proportional to 120,981.74, 181,509.54 and 61,858.93

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Solution

The fourth proportional to 120,981.74, 181,509.54 and 61,858.93 is: 92,807.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,981.74 : 181,509.54 = 61,858.93 : x
  2. Step 2: Convert to fraction form
    120,981.74/181,509.54 = 61,858.93/x
  3. Step 3: Cross multiply
    120,981.74x = 181,509.54 × 61,858.93
  4. Step 4: Simplify right side
    120,981.74x = 11,227,985,619.90
  5. Step 5: Solve for x
    x = 11,227,985,619.90/120,981.74
  6. Step 6: Final answer
    x = 92,807.28

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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.