Home / 140,347.20-193,670.88-76,672.32

Finding the Fourth Proportional to 140,347.20, 193,670.88 and 76,672.32

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Solution

The fourth proportional to 140,347.20, 193,670.88 and 76,672.32 is: 105,803.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,347.20 : 193,670.88 = 76,672.32 : x
  2. Step 2: Convert to fraction form
    140,347.20/193,670.88 = 76,672.32/x
  3. Step 3: Cross multiply
    140,347.20x = 193,670.88 × 76,672.32
  4. Step 4: Simplify right side
    140,347.20x = 14,849,195,686.04
  5. Step 5: Solve for x
    x = 14,849,195,686.04/140,347.20
  6. Step 6: Final answer
    x = 105,803.29

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1.5x scale

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.