Home / 167,390.64-231,032.61-99,445.35

Finding the Fourth Proportional to 167,390.64, 231,032.61 and 99,445.35

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Solution

The fourth proportional to 167,390.64, 231,032.61 and 99,445.35 is: 137,254.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,390.64 : 231,032.61 = 99,445.35 : x
  2. Step 2: Convert to fraction form
    167,390.64/231,032.61 = 99,445.35/x
  3. Step 3: Cross multiply
    167,390.64x = 231,032.61 × 99,445.35
  4. Step 4: Simplify right side
    167,390.64x = 22,975,118,762.86
  5. Step 5: Solve for x
    x = 22,975,118,762.86/167,390.64
  6. Step 6: Final answer
    x = 137,254.50

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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.