Home / 134,570.10-201,612.15-78,364.20

Finding the Fourth Proportional to 134,570.10, 201,612.15 and 78,364.20

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Solution

The fourth proportional to 134,570.10, 201,612.15 and 78,364.20 is: 117,404.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,570.10 : 201,612.15 = 78,364.20 : x
  2. Step 2: Convert to fraction form
    134,570.10/201,612.15 = 78,364.20/x
  3. Step 3: Cross multiply
    134,570.10x = 201,612.15 × 78,364.20
  4. Step 4: Simplify right side
    134,570.10x = 15,799,174,845.03
  5. Step 5: Solve for x
    x = 15,799,174,845.03/134,570.10
  6. Step 6: Final answer
    x = 117,404.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.