Home / 152,913.40-229,370.10-121,420.60

Finding the Fourth Proportional to 152,913.40, 229,370.10 and 121,420.60

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Solution

The fourth proportional to 152,913.40, 229,370.10 and 121,420.60 is: 182,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,913.40 : 229,370.10 = 121,420.60 : x
  2. Step 2: Convert to fraction form
    152,913.40/229,370.10 = 121,420.60/x
  3. Step 3: Cross multiply
    152,913.40x = 229,370.10 × 121,420.60
  4. Step 4: Simplify right side
    152,913.40x = 27,850,255,164.06
  5. Step 5: Solve for x
    x = 27,850,255,164.06/152,913.40
  6. Step 6: Final answer
    x = 182,130.90

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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.