Home / 154,430.25-231,208.57-98,130.79

Finding the Fourth Proportional to 154,430.25, 231,208.57 and 98,130.79

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Solution

The fourth proportional to 154,430.25, 231,208.57 and 98,130.79 is: 146,918.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,430.25 : 231,208.57 = 98,130.79 : x
  2. Step 2: Convert to fraction form
    154,430.25/231,208.57 = 98,130.79/x
  3. Step 3: Cross multiply
    154,430.25x = 231,208.57 × 98,130.79
  4. Step 4: Simplify right side
    154,430.25x = 22,688,679,628.87
  5. Step 5: Solve for x
    x = 22,688,679,628.87/154,430.25
  6. Step 6: Final answer
    x = 146,918.62

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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.