Home / 113,485.65-156,677.27-100,873.95

Finding the Fourth Proportional to 113,485.65, 156,677.27 and 100,873.95

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Solution

The fourth proportional to 113,485.65, 156,677.27 and 100,873.95 is: 139,265.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,485.65 : 156,677.27 = 100,873.95 : x
  2. Step 2: Convert to fraction form
    113,485.65/156,677.27 = 100,873.95/x
  3. Step 3: Cross multiply
    113,485.65x = 156,677.27 × 100,873.95
  4. Step 4: Simplify right side
    113,485.65x = 15,804,654,595.75
  5. Step 5: Solve for x
    x = 15,804,654,595.75/113,485.65
  6. Step 6: Final answer
    x = 139,265.67

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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.