Home / 154,130.16-230,435.76-130,699.20

Finding the Fourth Proportional to 154,130.16, 230,435.76 and 130,699.20

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Solution

The fourth proportional to 154,130.16, 230,435.76 and 130,699.20 is: 195,404.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,130.16 : 230,435.76 = 130,699.20 : x
  2. Step 2: Convert to fraction form
    154,130.16/230,435.76 = 130,699.20/x
  3. Step 3: Cross multiply
    154,130.16x = 230,435.76 × 130,699.20
  4. Step 4: Simplify right side
    154,130.16x = 30,117,769,483.39
  5. Step 5: Solve for x
    x = 30,117,769,483.39/154,130.16
  6. Step 6: Final answer
    x = 195,404.78

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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.