Home / 153,151.08-211,308.54-89,452.68

Finding the Fourth Proportional to 153,151.08, 211,308.54 and 89,452.68

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Solution

The fourth proportional to 153,151.08, 211,308.54 and 89,452.68 is: 123,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,151.08 : 211,308.54 = 89,452.68 : x
  2. Step 2: Convert to fraction form
    153,151.08/211,308.54 = 89,452.68/x
  3. Step 3: Cross multiply
    153,151.08x = 211,308.54 × 89,452.68
  4. Step 4: Simplify right side
    153,151.08x = 18,902,115,209.89
  5. Step 5: Solve for x
    x = 18,902,115,209.89/153,151.08
  6. Step 6: Final answer
    x = 123,421.36

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1.5x scale

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.