Home / 155,098.23-213,981.05-101,414.67

Finding the Fourth Proportional to 155,098.23, 213,981.05 and 101,414.67

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Solution

The fourth proportional to 155,098.23, 213,981.05 and 101,414.67 is: 139,916.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,098.23 : 213,981.05 = 101,414.67 : x
  2. Step 2: Convert to fraction form
    155,098.23/213,981.05 = 101,414.67/x
  3. Step 3: Cross multiply
    155,098.23x = 213,981.05 × 101,414.67
  4. Step 4: Simplify right side
    155,098.23x = 21,700,817,572.00
  5. Step 5: Solve for x
    x = 21,700,817,572.00/155,098.23
  6. Step 6: Final answer
    x = 139,916.60

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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.