Home / 140,345.63-193,681.22-76,687.52

Finding the Fourth Proportional to 140,345.63, 193,681.22 and 76,687.52

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Solution

The fourth proportional to 140,345.63, 193,681.22 and 76,687.52 is: 105,831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,345.63 : 193,681.22 = 76,687.52 : x
  2. Step 2: Convert to fraction form
    140,345.63/193,681.22 = 76,687.52/x
  3. Step 3: Cross multiply
    140,345.63x = 193,681.22 × 76,687.52
  4. Step 4: Simplify right side
    140,345.63x = 14,852,932,432.37
  5. Step 5: Solve for x
    x = 14,852,932,432.37/140,345.63
  6. Step 6: Final answer
    x = 105,831.10

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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.