Home / 138,024.65-190,469.58-77,597.83

Finding the Fourth Proportional to 138,024.65, 190,469.58 and 77,597.83

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Solution

The fourth proportional to 138,024.65, 190,469.58 and 77,597.83 is: 107,082.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,024.65 : 190,469.58 = 77,597.83 : x
  2. Step 2: Convert to fraction form
    138,024.65/190,469.58 = 77,597.83/x
  3. Step 3: Cross multiply
    138,024.65x = 190,469.58 × 77,597.83
  4. Step 4: Simplify right side
    138,024.65x = 14,780,026,089.01
  5. Step 5: Solve for x
    x = 14,780,026,089.01/138,024.65
  6. Step 6: Final answer
    x = 107,082.51

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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.