Home / 130,005.25-195,007.88-31,509.25

Finding the Fourth Proportional to 130,005.25, 195,007.88 and 31,509.25

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Solution

The fourth proportional to 130,005.25, 195,007.88 and 31,509.25 is: 47,263.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,005.25 : 195,007.88 = 31,509.25 : x
  2. Step 2: Convert to fraction form
    130,005.25/195,007.88 = 31,509.25/x
  3. Step 3: Cross multiply
    130,005.25x = 195,007.88 × 31,509.25
  4. Step 4: Simplify right side
    130,005.25x = 6,144,552,042.89
  5. Step 5: Solve for x
    x = 6,144,552,042.89/130,005.25
  6. Step 6: Final answer
    x = 47,263.88

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1.5x scale

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.