Home / 157,386.24-217,154.52-100,874.16

Finding the Fourth Proportional to 157,386.24, 217,154.52 and 100,874.16

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Solution

The fourth proportional to 157,386.24, 217,154.52 and 100,874.16 is: 139,181.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,386.24 : 217,154.52 = 100,874.16 : x
  2. Step 2: Convert to fraction form
    157,386.24/217,154.52 = 100,874.16/x
  3. Step 3: Cross multiply
    157,386.24x = 217,154.52 × 100,874.16
  4. Step 4: Simplify right side
    157,386.24x = 21,905,279,795.20
  5. Step 5: Solve for x
    x = 21,905,279,795.20/157,386.24
  6. Step 6: Final answer
    x = 139,181.67

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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.