Home / 140,345.08-193,670.52-76,685.08

Finding the Fourth Proportional to 140,345.08, 193,670.52 and 76,685.08

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Solution

The fourth proportional to 140,345.08, 193,670.52 and 76,685.08 is: 105,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,345.08 : 193,670.52 = 76,685.08 : x
  2. Step 2: Convert to fraction form
    140,345.08/193,670.52 = 76,685.08/x
  3. Step 3: Cross multiply
    140,345.08x = 193,670.52 × 76,685.08
  4. Step 4: Simplify right side
    140,345.08x = 14,851,639,319.84
  5. Step 5: Solve for x
    x = 14,851,639,319.84/140,345.08
  6. Step 6: Final answer
    x = 105,822.30

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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.