Home / 128,017.48-191,995.26-56,900.92

Finding the Fourth Proportional to 128,017.48, 191,995.26 and 56,900.92

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Solution

The fourth proportional to 128,017.48, 191,995.26 and 56,900.92 is: 85,337.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,017.48 : 191,995.26 = 56,900.92 : x
  2. Step 2: Convert to fraction form
    128,017.48/191,995.26 = 56,900.92/x
  3. Step 3: Cross multiply
    128,017.48x = 191,995.26 × 56,900.92
  4. Step 4: Simplify right side
    128,017.48x = 10,924,706,929.64
  5. Step 5: Solve for x
    x = 10,924,706,929.64/128,017.48
  6. Step 6: Final answer
    x = 85,337.62

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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.