Home / 153,728.48-230,518.91-87,150.74

Finding the Fourth Proportional to 153,728.48, 230,518.91 and 87,150.74

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Solution

The fourth proportional to 153,728.48, 230,518.91 and 87,150.74 is: 130,684.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,728.48 : 230,518.91 = 87,150.74 : x
  2. Step 2: Convert to fraction form
    153,728.48/230,518.91 = 87,150.74/x
  3. Step 3: Cross multiply
    153,728.48x = 230,518.91 × 87,150.74
  4. Step 4: Simplify right side
    153,728.48x = 20,089,892,655.78
  5. Step 5: Solve for x
    x = 20,089,892,655.78/153,728.48
  6. Step 6: Final answer
    x = 130,684.26

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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.