Home / 140,303.48-193,615.65-76,641.53

Finding the Fourth Proportional to 140,303.48, 193,615.65 and 76,641.53

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Solution

The fourth proportional to 140,303.48, 193,615.65 and 76,641.53 is: 105,763.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,303.48 : 193,615.65 = 76,641.53 : x
  2. Step 2: Convert to fraction form
    140,303.48/193,615.65 = 76,641.53/x
  3. Step 3: Cross multiply
    140,303.48x = 193,615.65 × 76,641.53
  4. Step 4: Simplify right side
    140,303.48x = 14,838,998,679.87
  5. Step 5: Solve for x
    x = 14,838,998,679.87/140,303.48
  6. Step 6: Final answer
    x = 105,763.59

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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.