Home / 139,971.24-193,162.32-76,312.26

Finding the Fourth Proportional to 139,971.24, 193,162.32 and 76,312.26

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Solution

The fourth proportional to 139,971.24, 193,162.32 and 76,312.26 is: 105,312.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,971.24 : 193,162.32 = 76,312.26 : x
  2. Step 2: Convert to fraction form
    139,971.24/193,162.32 = 76,312.26/x
  3. Step 3: Cross multiply
    139,971.24x = 193,162.32 × 76,312.26
  4. Step 4: Simplify right side
    139,971.24x = 14,740,653,186.04
  5. Step 5: Solve for x
    x = 14,740,653,186.04/139,971.24
  6. Step 6: Final answer
    x = 105,312.01

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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.