Home / 115,197.90-172,406.70-70,852.74

Finding the Fourth Proportional to 115,197.90, 172,406.70 and 70,852.74

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Solution

The fourth proportional to 115,197.90, 172,406.70 and 70,852.74 is: 106,039.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,197.90 : 172,406.70 = 70,852.74 : x
  2. Step 2: Convert to fraction form
    115,197.90/172,406.70 = 70,852.74/x
  3. Step 3: Cross multiply
    115,197.90x = 172,406.70 × 70,852.74
  4. Step 4: Simplify right side
    115,197.90x = 12,215,487,089.36
  5. Step 5: Solve for x
    x = 12,215,487,089.36/115,197.90
  6. Step 6: Final answer
    x = 106,039.15

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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.