Home / 153,330.42-211,627.44-89,683.86

Finding the Fourth Proportional to 153,330.42, 211,627.44 and 89,683.86

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Solution

The fourth proportional to 153,330.42, 211,627.44 and 89,683.86 is: 123,782.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,330.42 : 211,627.44 = 89,683.86 : x
  2. Step 2: Convert to fraction form
    153,330.42/211,627.44 = 89,683.86/x
  3. Step 3: Cross multiply
    153,330.42x = 211,627.44 × 89,683.86
  4. Step 4: Simplify right side
    153,330.42x = 18,979,565,701.12
  5. Step 5: Solve for x
    x = 18,979,565,701.12/153,330.42
  6. Step 6: Final answer
    x = 123,782.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.