Home / 130,038.40-194,923.20-70,748.80

Finding the Fourth Proportional to 130,038.40, 194,923.20 and 70,748.80

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Solution

The fourth proportional to 130,038.40, 194,923.20 and 70,748.80 is: 106,050.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,038.40 : 194,923.20 = 70,748.80 : x
  2. Step 2: Convert to fraction form
    130,038.40/194,923.20 = 70,748.80/x
  3. Step 3: Cross multiply
    130,038.40x = 194,923.20 × 70,748.80
  4. Step 4: Simplify right side
    130,038.40x = 13,790,582,492.16
  5. Step 5: Solve for x
    x = 13,790,582,492.16/130,038.40
  6. Step 6: Final answer
    x = 106,050.08

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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.