Home / 114,715.28-158,364.64-71,718.66

Finding the Fourth Proportional to 114,715.28, 158,364.64 and 71,718.66

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Solution

The fourth proportional to 114,715.28, 158,364.64 and 71,718.66 is: 99,007.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,715.28 : 158,364.64 = 71,718.66 : x
  2. Step 2: Convert to fraction form
    114,715.28/158,364.64 = 71,718.66/x
  3. Step 3: Cross multiply
    114,715.28x = 158,364.64 × 71,718.66
  4. Step 4: Simplify right side
    114,715.28x = 11,357,699,772.18
  5. Step 5: Solve for x
    x = 11,357,699,772.18/114,715.28
  6. Step 6: Final answer
    x = 99,007.73

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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.