Home / 134,421.96-185,464.02-86,703.24

Finding the Fourth Proportional to 134,421.96, 185,464.02 and 86,703.24

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Solution

The fourth proportional to 134,421.96, 185,464.02 and 86,703.24 is: 119,625.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,421.96 : 185,464.02 = 86,703.24 : x
  2. Step 2: Convert to fraction form
    134,421.96/185,464.02 = 86,703.24/x
  3. Step 3: Cross multiply
    134,421.96x = 185,464.02 × 86,703.24
  4. Step 4: Simplify right side
    134,421.96x = 16,080,331,437.42
  5. Step 5: Solve for x
    x = 16,080,331,437.42/134,421.96
  6. Step 6: Final answer
    x = 119,625.78

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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.