Home / 190,362.98-262,711.42-105,478.22

Finding the Fourth Proportional to 190,362.98, 262,711.42 and 105,478.22

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Solution

The fourth proportional to 190,362.98, 262,711.42 and 105,478.22 is: 145,565.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,362.98 : 262,711.42 = 105,478.22 : x
  2. Step 2: Convert to fraction form
    190,362.98/262,711.42 = 105,478.22/x
  3. Step 3: Cross multiply
    190,362.98x = 262,711.42 × 105,478.22
  4. Step 4: Simplify right side
    190,362.98x = 27,710,332,955.27
  5. Step 5: Solve for x
    x = 27,710,332,955.27/190,362.98
  6. Step 6: Final answer
    x = 145,565.77

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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.