Home / 140,038.31-193,250.53-76,372.31

Finding the Fourth Proportional to 140,038.31, 193,250.53 and 76,372.31

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Solution

The fourth proportional to 140,038.31, 193,250.53 and 76,372.31 is: 105,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,038.31 : 193,250.53 = 76,372.31 : x
  2. Step 2: Convert to fraction form
    140,038.31/193,250.53 = 76,372.31/x
  3. Step 3: Cross multiply
    140,038.31x = 193,250.53 × 76,372.31
  4. Step 4: Simplify right side
    140,038.31x = 14,758,989,384.82
  5. Step 5: Solve for x
    x = 14,758,989,384.82/140,038.31
  6. Step 6: Final answer
    x = 105,392.51

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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.