Home / 102,739.16-141,784.42-57,417.14

Finding the Fourth Proportional to 102,739.16, 141,784.42 and 57,417.14

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Solution

The fourth proportional to 102,739.16, 141,784.42 and 57,417.14 is: 79,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,739.16 : 141,784.42 = 57,417.14 : x
  2. Step 2: Convert to fraction form
    102,739.16/141,784.42 = 57,417.14/x
  3. Step 3: Cross multiply
    102,739.16x = 141,784.42 × 57,417.14
  4. Step 4: Simplify right side
    102,739.16x = 8,140,856,319.19
  5. Step 5: Solve for x
    x = 8,140,856,319.19/102,739.16
  6. Step 6: Final answer
    x = 79,238.10

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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.