Home / 130,011.85-195,017.78-121,263.85

Finding the Fourth Proportional to 130,011.85, 195,017.78 and 121,263.85

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Solution

The fourth proportional to 130,011.85, 195,017.78 and 121,263.85 is: 181,895.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,011.85 : 195,017.78 = 121,263.85 : x
  2. Step 2: Convert to fraction form
    130,011.85/195,017.78 = 121,263.85/x
  3. Step 3: Cross multiply
    130,011.85x = 195,017.78 × 121,263.85
  4. Step 4: Simplify right side
    130,011.85x = 23,648,606,214.93
  5. Step 5: Solve for x
    x = 23,648,606,214.93/130,011.85
  6. Step 6: Final answer
    x = 181,895.78

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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.