Home / 105,931.81-146,178.70-58,187.17

Finding the Fourth Proportional to 105,931.81, 146,178.70 and 58,187.17

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Solution

The fourth proportional to 105,931.81, 146,178.70 and 58,187.17 is: 80,294.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,931.81 : 146,178.70 = 58,187.17 : x
  2. Step 2: Convert to fraction form
    105,931.81/146,178.70 = 58,187.17/x
  3. Step 3: Cross multiply
    105,931.81x = 146,178.70 × 58,187.17
  4. Step 4: Simplify right side
    105,931.81x = 8,505,724,867.28
  5. Step 5: Solve for x
    x = 8,505,724,867.28/105,931.81
  6. Step 6: Final answer
    x = 80,294.34

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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.