Home / 130,038.40-195,106.20-51,207.58

Finding the Fourth Proportional to 130,038.40, 195,106.20 and 51,207.58

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Solution

The fourth proportional to 130,038.40, 195,106.20 and 51,207.58 is: 76,830.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,038.40 : 195,106.20 = 51,207.58 : x
  2. Step 2: Convert to fraction form
    130,038.40/195,106.20 = 51,207.58/x
  3. Step 3: Cross multiply
    130,038.40x = 195,106.20 × 51,207.58
  4. Step 4: Simplify right side
    130,038.40x = 9,990,916,345.00
  5. Step 5: Solve for x
    x = 9,990,916,345.00/130,038.40
  6. Step 6: Final answer
    x = 76,830.51

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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.