Home / 105,989.22-146,263.32-58,242.51

Finding the Fourth Proportional to 105,989.22, 146,263.32 and 58,242.51

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Solution

The fourth proportional to 105,989.22, 146,263.32 and 58,242.51 is: 80,373.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,989.22 : 146,263.32 = 58,242.51 : x
  2. Step 2: Convert to fraction form
    105,989.22/146,263.32 = 58,242.51/x
  3. Step 3: Cross multiply
    105,989.22x = 146,263.32 × 58,242.51
  4. Step 4: Simplify right side
    105,989.22x = 8,518,742,877.73
  5. Step 5: Solve for x
    x = 8,518,742,877.73/105,989.22
  6. Step 6: Final answer
    x = 80,373.67

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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.