Home / 140,585.22-210,878.64-57,479.22

Finding the Fourth Proportional to 140,585.22, 210,878.64 and 57,479.22

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Solution

The fourth proportional to 140,585.22, 210,878.64 and 57,479.22 is: 86,219.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,585.22 : 210,878.64 = 57,479.22 : x
  2. Step 2: Convert to fraction form
    140,585.22/210,878.64 = 57,479.22/x
  3. Step 3: Cross multiply
    140,585.22x = 210,878.64 × 57,479.22
  4. Step 4: Simplify right side
    140,585.22x = 12,121,139,741.86
  5. Step 5: Solve for x
    x = 12,121,139,741.86/140,585.22
  6. Step 6: Final answer
    x = 86,219.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.