Home / 140,346.72-193,681.26-76,688.46

Finding the Fourth Proportional to 140,346.72, 193,681.26 and 76,688.46

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Solution

The fourth proportional to 140,346.72, 193,681.26 and 76,688.46 is: 105,831.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,346.72 : 193,681.26 = 76,688.46 : x
  2. Step 2: Convert to fraction form
    140,346.72/193,681.26 = 76,688.46/x
  3. Step 3: Cross multiply
    140,346.72x = 193,681.26 × 76,688.46
  4. Step 4: Simplify right side
    140,346.72x = 14,853,117,560.26
  5. Step 5: Solve for x
    x = 14,853,117,560.26/140,346.72
  6. Step 6: Final answer
    x = 105,831.60

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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.