Home / 187,106.74-258,134.02-115,362.21

Finding the Fourth Proportional to 187,106.74, 258,134.02 and 115,362.21

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Solution

The fourth proportional to 187,106.74, 258,134.02 and 115,362.21 is: 159,154.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,106.74 : 258,134.02 = 115,362.21 : x
  2. Step 2: Convert to fraction form
    187,106.74/258,134.02 = 115,362.21/x
  3. Step 3: Cross multiply
    187,106.74x = 258,134.02 × 115,362.21
  4. Step 4: Simplify right side
    187,106.74x = 29,778,911,023.38
  5. Step 5: Solve for x
    x = 29,778,911,023.38/187,106.74
  6. Step 6: Final answer
    x = 159,154.67

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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.