Home / 153,798.20-230,615.04-78,887.72

Finding the Fourth Proportional to 153,798.20, 230,615.04 and 78,887.72

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Solution

The fourth proportional to 153,798.20, 230,615.04 and 78,887.72 is: 118,289.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,798.20 : 230,615.04 = 78,887.72 : x
  2. Step 2: Convert to fraction form
    153,798.20/230,615.04 = 78,887.72/x
  3. Step 3: Cross multiply
    153,798.20x = 230,615.04 × 78,887.72
  4. Step 4: Simplify right side
    153,798.20x = 18,192,694,703.31
  5. Step 5: Solve for x
    x = 18,192,694,703.31/153,798.20
  6. Step 6: Final answer
    x = 118,289.39

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1.5x scale

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.