Home / 153,458.68-230,325.18-78,629.80

Finding the Fourth Proportional to 153,458.68, 230,325.18 and 78,629.80

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Solution

The fourth proportional to 153,458.68, 230,325.18 and 78,629.80 is: 118,014.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,458.68 : 230,325.18 = 78,629.80 : x
  2. Step 2: Convert to fraction form
    153,458.68/230,325.18 = 78,629.80/x
  3. Step 3: Cross multiply
    153,458.68x = 230,325.18 × 78,629.80
  4. Step 4: Simplify right side
    153,458.68x = 18,110,422,838.36
  5. Step 5: Solve for x
    x = 18,110,422,838.36/153,458.68
  6. Step 6: Final answer
    x = 118,014.98

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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.