Home / 190,366.12-262,707.08-105,485

Finding the Fourth Proportional to 190,366.12, 262,707.08 and 105,485

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Solution

The fourth proportional to 190,366.12, 262,707.08 and 105,485 is: 145,570.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,366.12 : 262,707.08 = 105,485 : x
  2. Step 2: Convert to fraction form
    190,366.12/262,707.08 = 105,485/x
  3. Step 3: Cross multiply
    190,366.12x = 262,707.08 × 105,485
  4. Step 4: Simplify right side
    190,366.12x = 27,711,656,333.80
  5. Step 5: Solve for x
    x = 27,711,656,333.80/190,366.12
  6. Step 6: Final answer
    x = 145,570.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.