Home / 153,556.64-211,908.37-85,572.13

Finding the Fourth Proportional to 153,556.64, 211,908.37 and 85,572.13

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Solution

The fourth proportional to 153,556.64, 211,908.37 and 85,572.13 is: 118,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,556.64 : 211,908.37 = 85,572.13 : x
  2. Step 2: Convert to fraction form
    153,556.64/211,908.37 = 85,572.13/x
  3. Step 3: Cross multiply
    153,556.64x = 211,908.37 × 85,572.13
  4. Step 4: Simplify right side
    153,556.64x = 18,133,449,526.19
  5. Step 5: Solve for x
    x = 18,133,449,526.19/153,556.64
  6. Step 6: Final answer
    x = 118,089.65

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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.