Home / 129,018.60-193,527.90-102,580.20

Finding the Fourth Proportional to 129,018.60, 193,527.90 and 102,580.20

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Solution

The fourth proportional to 129,018.60, 193,527.90 and 102,580.20 is: 153,870.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,018.60 : 193,527.90 = 102,580.20 : x
  2. Step 2: Convert to fraction form
    129,018.60/193,527.90 = 102,580.20/x
  3. Step 3: Cross multiply
    129,018.60x = 193,527.90 × 102,580.20
  4. Step 4: Simplify right side
    129,018.60x = 19,852,130,687.58
  5. Step 5: Solve for x
    x = 19,852,130,687.58/129,018.60
  6. Step 6: Final answer
    x = 153,870.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.