Home / 130,409.55-195,686.99-70,436.81

Finding the Fourth Proportional to 130,409.55, 195,686.99 and 70,436.81

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Solution

The fourth proportional to 130,409.55, 195,686.99 and 70,436.81 is: 105,694.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,409.55 : 195,686.99 = 70,436.81 : x
  2. Step 2: Convert to fraction form
    130,409.55/195,686.99 = 70,436.81/x
  3. Step 3: Cross multiply
    130,409.55x = 195,686.99 × 70,436.81
  4. Step 4: Simplify right side
    130,409.55x = 13,783,567,334.10
  5. Step 5: Solve for x
    x = 13,783,567,334.10/130,409.55
  6. Step 6: Final answer
    x = 105,694.46

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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.