Home / 187,522.07-258,817.34-142,120.86

Finding the Fourth Proportional to 187,522.07, 258,817.34 and 142,120.86

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Solution

The fourth proportional to 187,522.07, 258,817.34 and 142,120.86 is: 196,154.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,522.07 : 258,817.34 = 142,120.86 : x
  2. Step 2: Convert to fraction form
    187,522.07/258,817.34 = 142,120.86/x
  3. Step 3: Cross multiply
    187,522.07x = 258,817.34 × 142,120.86
  4. Step 4: Simplify right side
    187,522.07x = 36,783,342,547.26
  5. Step 5: Solve for x
    x = 36,783,342,547.26/187,522.07
  6. Step 6: Final answer
    x = 196,154.74

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1.5x scale

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.